APA (7th ed.) Citation

Zimmermann, E. W. (1922). Zimmermann on ocean shipping. Prentice-Hall.

Chicago Style (17th ed.) Citation

Zimmermann, Erich Walter. Zimmermann on Ocean Shipping. New York: Prentice-Hall, 1922.

MLA (9th ed.) Citation

Zimmermann, Erich Walter. Zimmermann on Ocean Shipping. Prentice-Hall, 1922.