APA (7th ed.) Citation

Erskine, C. (1985). Twenty years before the mast. Smithsonian Institution Press.

Chicago Style (17th ed.) Citation

Erskine, Charles. Twenty Years Before the Mast. Washington, D.C.: Smithsonian Institution Press, 1985.

MLA (9th ed.) Citation

Erskine, Charles. Twenty Years Before the Mast. Smithsonian Institution Press, 1985.