1. Copernicus on the Revolutions of the Heavenly Spheres
by Copernicus Nicolaus 
Price: USD 59.56
Dealer: Biblio, Richard Sylvanus Williams (Est 1976) (Bookdealer)
Description: GB: David & Charles, Date: 1976. Brown cloth lettered in gold. Virtually as new. but slight spotting to top edge.. 1st Edition. Hardback. nrFine/No DW. 1976. David & Charles ISBN 071536927X 9780715369272 [GB] 

2. Copernicus, on the Revolutions of the Heavenly Spheres
by Copernicus, Nicolaus 
Price: USD 60.45
Dealer: AbebooksUK, Richard Sylvanus Williams (Est 1976)
Description: ISBN10: 071536927X, ISBN13: 9780715369272, [publisher: David & Charles, GB] Hardcover First Edition Brown cloth lettered in gold. Virtually as new. but slight spotting to top edge. [WINTERTON, United Kingdom] [Publication Year: 1976]  

3. On the Revolutions of the Heavenly Spheres. A New Translation from the Latin, with an introduction and notes by A. M. Duncan.
by COPERNICUS; DUNCAN, A. M.: 
Price: USD 65.00
Dealer: Abebooks, Ted Kottler, Bookseller
Description: ISBN10: 071536927X, ISBN13: 9780715369272, [publisher: Newton Abbot, etc.: David & Charles/ New York: Barnes & Noble (A Division of Harper & Row), 1976.] Hardcover First Edition 328 pp; illus. Original cloth. Near Fine, in near fine dust jacket. US ISBN: 0064912795. [Redondo Beach, CA, U.S.A.] [Publication Year: 1976]  

4. On the Revolutions of the Heavenly Spheres. A New Translation from the Latin, with an Introduction and Notes by A. M. Duncan.
by COPERNICUS, Nicholas: 
Price: USD 95.00
Dealer: Abebooks, Ted Kottler, Bookseller
Description: ISBN10: 071536927X, ISBN13: 9780715369272, [publisher: Newton Abbot, etc.: David & Charles/New York: Barnes & Noble, 1976.] Hardcover First Edition Original cloth. 328 pp; illus. Ex-library: ink stamp on title page and pastedown, label on flyleaf, remains of tape on covers from removal of dust jacket. Else Very Good, without dust jacket. US ISBN: 0064912795. [Redondo Beach, CA, U.S.A.] [Publication Year: 1976]