APA (7th ed.) Citation

Barker, J. R. (1970). The United States merchant marine in national perspective. Heath Lexington Books.

Chicago Style (17th ed.) Citation

Barker, James R. The United States Merchant Marine in National Perspective. Lexington, Mass: Heath Lexington Books, 1970.

MLA (9th ed.) Citation

Barker, James R. The United States Merchant Marine in National Perspective. Heath Lexington Books, 1970.

Warning: These citations may not always be 100% accurate.