APA (7th ed.) Citation

Spears, J. R. (1915). The story of the American merchant marine (New ed.). Macmillan.

Chicago Style (17th ed.) Citation

Spears, John Randolph. The Story of the American Merchant Marine. New ed. New York: Macmillan, 1915.

MLA (9th ed.) Citation

Spears, John Randolph. The Story of the American Merchant Marine. New ed. Macmillan, 1915.