APA (7th ed.) Citation

Van Loon. (1989). Ships and how they sailed the seven seas: (5000B.C. - A.D. 1935) (Rev ed.). Tynron Press.

Chicago Style (17th ed.) Citation

Van Loon. Ships and How They Sailed the Seven Seas: (5000B.C. - A.D. 1935). Rev ed. Dumfriesshire: Tynron Press, 1989.

MLA (8th ed.) Citation

Van Loon. Ships and How They Sailed the Seven Seas: (5000B.C. - A.D. 1935). Rev ed. Tynron Press, 1989.