1. 21st Century Seamanship
by Witherby Publishing Group 
Price: USD 373.17
Dealer: Abebooks, Book Deals
Description: ISBN10: 1856096327, ISBN13: 9781856096324, [publisher: Witherby Seamanship International] Softcover New! This book is in the same immaculate condition as when it was published 4.32 [Tucson, AZ, U.S.A.] [Publication Year: 2015]  

2. 21st Century Seamanship
by Witherby Publishing Group 
Price: USD 373.16
Dealer: Abebooks, GF Books, Inc.
Description: ISBN10: 1856096327, ISBN13: 9781856096324, [publisher: Witherby Seamanship International] Softcover Book is in NEW condition. 4.32 [Hawthorne, CA, U.S.A.] [Publication Year: 2015]  

3. 21st Century Seamanship
by Witherby Publishing Group 
Price: USD 341.74
Dealer: AbebooksUK, dsmbooks
Description: ISBN10: 1856096327, ISBN13: 9781856096324, [publisher: Witherby Seamanship International Ltd] Softcover New [liverpool, United Kingdom] [Publication Year: 2015]