51. On Certainty/Uber Gewissheit
by WITTGENSTEIN G. E. ANSCOMBE M. G. H. VON WRIGHT 
Price: USD 18.99
Dealer: Biblio, Eighth Day Books
Description: Harpercollins, June Date: 1986. Paper Back. New. 1986. Harpercollins ISBN 0061316865 9780061316869 [US] 

52. On Certainty/Uber Gewissheit
by WITTGENSTEIN, G. E. ANSCOMBE M., G. H. VON WRIGHT 
Price: USD 18.99
Dealer: Abebooks, Eighth Day Books, LLC
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harpercollins June 1986] Softcover [Wichita, KS, U.S.A.] [Publication Year: 1986]  

53. On Certainty/Uber Gewissheit
by Wittgenstein, Ludwig; Anscombe, G. E. M.; Von Wright, G. H. 
Price: USD 19.47
Dealer: AbebooksUK, GreatBookPricesUK
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover [Castle Donington, DERBY, United Kingdom] [Publication Year: 1972]  

54. On Certainty
by Ludwig Wittgenstein, G. E. M. Anscombe, G. H. von Wright 
Price: USD 19.48
Dealer: AbebooksUK, Blackwell's
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper Torchbooks 2001-05-31, New York |London] Softcover Language: ENG|GER [Oxford, OX, United Kingdom] [Publication Year: 2001]  

55. On Certainty
by Ludwig Wittgenstein 
Price: USD 19.49
Dealer: Biblio, Ergodebooks
Description: Harper Perennial, Date: 1972-09-06. Paperback. Used:Good. 1972. Harper Perennial ISBN 0061316865 9780061316869 [US] 

56. On Certainty (Paperback or Softback)
by Wittgenstein, Ludwig 
Price: USD 19.71
Dealer: Abebooks, BargainBookStores
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper Perennial 9/6/1972] Softcover On Certainty 0.32 [Grand Rapids, MI, U.S.A.] [Publication Year: 1972]  

57. On Certainty/Uber Gewissheit
by Wittgenstein Ludwig/ Anscombe G. E. M./ Von Wright G. H. 
Price: USD 20.31
Dealer: Biblio, Revaluation Books
Description: Harpercollins, Date: 1986. Paperback. New. twelfth printing edition. 192 pages. 8.00x5.25x0.50 inches. 1986. Harpercollins ISBN 0061316865 9780061316869 [GB] 

58. On Certainty/Uber Gewissheit
by Wittgenstein, Ludwig/ Anscombe, G. E. M./ Von Wright, G. H. 
Price: USD 20.62
Dealer: AbebooksUK, Revaluation Books
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harpercollins] Softcover twelfth printing edition. 192 pages. 8.00x5.25x0.50 inches. In Stock. [Exeter, United Kingdom] [Publication Year: 1986]  

59. On Certainty (Harper Perennial Modern Thought) (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 21.01
Dealer: Abebooks, Ergodebooks
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper Perennial] Softcover Written over the last 18 months of his life and inspired by his interest in G. E. Moore's defense of common sense, this much discussed volume collects Wittgenstein's reflections on knowledge and certainty, on what it is to know a proposition for sure. [Houston, TX, U.S.A.] [Publication Year: 1972]  

60. On Certainty Harper Perennial Modern Thought English and German Edition
by Wittgenstein Ludwig 
Price: USD 21.36
Dealer: Biblio, Russell Books Ltd
Description: Harper & Row. New. Special order direct from the distributor Harper & Row ISBN 0061316865 9780061316869 [CA] 

61. On Certainty (Harper Perennial Modern Thought) (English and German Edition)
by Wittgenstein, Ludwig 
Price: USD 21.36
Dealer: Abebooks, Russell Books
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover Special order direct from the distributor [Victoria, BC, Canada] [Publication Year: 1986]  

62. On Certainty (Harper Perennial Modern Thought) (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 21.90
Dealer: Abebooks, GoldenWavesOfBooks
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover New. Fast Shipping and good customer service [Fayetteville, TX, U.S.A.] [Publication Year: 1972]  

63. On Certainty/Uber Gewissheit
by WITTGENSTEIN G. E. ANSCOMBE M. G. H. VON WRIGHT 
Price: USD 21.99
Dealer: Biblio, Eighth Day Books
Description: Harpercollins, June Date: 1986. Paper Back. New. 1986. Harpercollins ISBN 0061316865 9780061316869 [US] 

64. On Certainty/Uber Gewissheit
by WITTGENSTEIN, G. E. ANSCOMBE M., G. H. VON WRIGHT 
Price: USD 21.99
Dealer: Abebooks, Eighth Day Books, LLC
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harpercollins June 1986] Softcover [Wichita, KS, U.S.A.] [Publication Year: 1986]  

65. On Certainty
by Wittgenstein, Ludwig 
Price: USD 22.97
Dealer: Alibris, GreatBookPricesUK5 via Alibris
Description: New York, NY Harper Perennial 1972 Trade paperback Good. Trade paperback (US). Glued binding. 192 p. Harper Perennial Modern Thought. May show signs of wear, highlighting, writing, and previous use. This item may be a former library book with typical markings. No guarantee on products that contain supplements Your satisfaction is 100% guaranteed. Twenty-five year bookseller with shipments to over fifty million happy customers. 

66. On Certainty (Paperback)
by Ludwig Wittgenstein 
Price: USD 23.38
Dealer: AbebooksUK, CitiRetail
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper Perennial, New York, NY] Softcover Paperback. Written over the last 18 months of his life and inspired by his interest in G. E. Moore's defense of common sense, this much discussed volume collects Wittgenstein's reflections on knowledge and certainty, on what it is to know a proposition for sure. The volume is full of thought-provoking insight which will prove a stimulus both to further study and to scholarly disagreement. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. [Stevenage, United Kingdom] [Publication Year: 1972]  

67. On Certainty by Ludwig Wittgenstein
by Ludwig Wittgenstein 
Price: USD 23.95
Dealer: Biblio, BooksEntirely
Description: This book is in very good condition and ready for quick shipment ISBN 0061316865 9780061316869 [US] 

68. On Certainty (Harper Perennial Modern Thought) (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 24.16
Dealer: Abebooks, GoldBooks
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover Very Good Copy. Customer Service Guaranteed [Austin, TX, U.S.A.] [Publication Year: 1972]  

69. On Certainty (Harper Perennial Modern Thought) (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 25.00
Dealer: Abebooks, California Books
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover [Miami, FL, U.S.A.] [Publication Year: 1972]  

70. On Certainty/Uber Gewissheit
by Wittgenstein Ludwig/ Anscombe G. E. M./ Von Wright G. H. 
Price: USD 25.32
Dealer: Biblio, Revaluation Books
Description: Harpercollins, Date: 1986. Paperback. New. twelfth printing edition. 192 pages. 8.00x5.25x0.50 inches. 1986. Harpercollins ISBN 0061316865 9780061316869 [GB] 

71. On Certainty/Uber Gewissheit
by Wittgenstein, Ludwig/ Anscombe, G. E. M./ Von Wright, G. H. 
Price: USD 25.69
Dealer: AbebooksUK, Revaluation Books
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harpercollins] Softcover twelfth printing edition. 192 pages. 8.00x5.25x0.50 inches. In Stock. [Exeter, United Kingdom] [Publication Year: 1986]  

72. On Certainty (Harper Perennial Modern Thought) (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 26.13
Dealer: Abebooks, GoldBooks
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover New Copy. Customer Service Guaranteed [Austin, TX, U.S.A.] [Publication Year: 1972]  

73. On Certainty
by Ludwig Wittgenstein 
Price: USD 26.69
Dealer: Abebooks, PBShop.store US
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: HarperCollins] Softcover New Book. Shipped from UK. Established seller since 2000. [Wood Dale, IL, U.S.A.] [Publication Year: 1972]  

74. On Certainty (Paperback)
by Ludwig Wittgenstein 
Price: USD 26.93
Dealer: AbebooksAU, AussieBookSeller
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper Perennial, New York, NY] Softcover Paperback. Written over the last 18 months of his life and inspired by his interest in G. E. Moore's defense of common sense, this much discussed volume collects Wittgenstein's reflections on knowledge and certainty, on what it is to know a proposition for sure. The volume is full of thought-provoking insight which will prove a stimulus both to further study and to scholarly disagreement. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability. [Truganina, VIC, Australia] [Publication Year: 1972]  

75. On Certainty
by Ludwig Wittgenstein 
Price: USD 27.42
Dealer: Biblio, The Saint Bookstore
Description: Paperback / softback. New. ISBN 0061316865 9780061316869 [GB] 

76. On Certainty
by Ludwig Wittgenstein 
Price: USD 29.17
Dealer: AbebooksUK, THE SAINT BOOKSTORE
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: HarperCollins Publishers Inc] Softcover New copy - Usually dispatched within 4 working days. [Southport, United Kingdom] [Publication Year: 1972]  

77. On Certainty (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 31.52
Dealer: AbebooksUK, Pieuler Store
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover 100% Customer Satisfaction Guaranteed ! The book shows some signs of wear from use but is a good readable copy. Cover in excellent condition. Binding tight. Pages in great shape, no tears. Not contain access codes, cd, DVD. [Suffolk, United Kingdom] [Publication Year: 1972]  

78. On Certainty
by Ludwig Wittgenstein 
Price: USD 31.79
Dealer: AbebooksDE, AHA-BUCH GmbH
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper Perennial] Softcover nach der Bestellung gedruckt Neuware - Printed after ordering - Written over the last 18 months of his life and inspired by his interest in G. E. Moore's defense of common sense, this much discussed volume collects Wittgenstein's reflections on knowledge and certainty, on what it is to know a proposition for sure. [Einbeck, Germany] [Publication Year: 1972]  

79. On certainty
by Ludwig Wittgenstein 
Price: USD 33.41
Dealer: Abebooks, LibroUsado | TikBooks
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper Torchbooks] Softcover L803153. Harper Torchbooks - 90pp (P) En inglés y alemán. Hojas amarillentas por el paso del tiempo. Ro. [Madrid, Spain] [Publication Year: 1972]  

80. On Certainty (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 35.20
Dealer: AbebooksUK, Pieuler Store
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover Book is in NEW condition. Satisfaction Guaranteed! Fast Customer Service!! [Suffolk, United Kingdom] [Publication Year: 1972]  

81. On Certainty (Harper Perennial Modern Thought) (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 46.33
Dealer: Abebooks, Hafa Adai Books
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover [Moncks Corner, SC, U.S.A.] [Publication Year: 1972]  

82. On Certainty (Harper Perennial Modern Thought) (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 52.12
Dealer: Abebooks, Front Cover Books
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover [Denver, CO, U.S.A.] [Publication Year: 1972]  

83. On Certainty (Harper Perennial Modern Thought) (English and German Edition)
by Ludwig Wittgenstein 
Price: USD 55.42
Dealer: Abebooks, Wizard Books
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover New [Long Beach, CA, U.S.A.] [Publication Year: 1972]  

84. ON CERTAINTY (HARPER PERENNIAL M
by Ludwig Wittgenstein 
Price: USD 59.40
Dealer: Abebooks, BennettBooksLtd
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover New. In shrink wrap. Looks like an interesting title! 0.35 [LOS ANGELES, CA, U.S.A.] [Publication Year: 1972]  

85. On Certainty Harper Perennial Modern Thought English and German Edition
by Ludwig Wittgenstein; G. E. M. Anscombe Editor; G. H. von Wright Editor; Denis Paul Translator; G. E. M. Anscombe Translator; 
Price: USD 62.37
Dealer: Biblio, GridFreed LLC
Description: Harper & Row, Date: 1972-09-06. Paperback. New. New. In shrink wrap. Looks like an interesting title! 1972. Harper & Row ISBN 0061316865 9780061316869 [US] 

86. On Certainty
by Wittgenstein, Ludwig 
Price: USD 65.00
Dealer: Alibris, J Mercurio Books Maps & Prints via Alibris
Description: Harper Perennial 1969 1st Edition Soft cover Fine 

87. On Certainty
by Wittgenstein Ludwig 
Price: USD 65.00
Dealer: Biblio, J. Mercurio Books, Maps, & Prints
Description: Harper Perennial. Fine. Soft cover. 1st Edition. Date: 1969. 1969. Harper Perennial ISBN 0061316865 9780061316869 [US] 

88. On Certainty
by Wittgenstein, Ludwig 
Price: USD 65.00
Dealer: Abebooks, J. Mercurio Books, Maps, & Prints IOBA
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper Perennial] Softcover First Edition [Garrison, NY, U.S.A.] [Publication Year: 1969]  

89. On Certainty (Harper Perennial ModernLudwig Wittgenstein
by Ludwig Wittgenstein 
Price: USD 99.12
Dealer: Abebooks, Iridium_Books
Description: ISBN10: 0061316865, ISBN13: 9780061316869, [publisher: Harper & Row] Softcover [DH, SE, Spain] [Publication Year: 1972]