APA (7th ed.) Citation

Sivewright, S. (1989). One man's mission: 20,000 ships. Lloyd's of London Press.

Chicago Style (17th ed.) Citation

Sivewright, Sandy. One Man's Mission: 20,000 Ships. London ; New York: Lloyd's of London Press, 1989.

MLA (9th ed.) Citation

Sivewright, Sandy. One Man's Mission: 20,000 Ships. Lloyd's of London Press, 1989.