APA (7th ed.) Citation

Zimmermann, E. W., & Clark, W. C. (1917). Foreign trade and shipping. Alexander Hamilton Institute.

Chicago Style (17th ed.) Citation

Zimmermann, Erich W., and W. C. Clark. Foreign Trade and Shipping. New York: Alexander Hamilton Institute, 1917.

MLA (8th ed.) Citation

Zimmermann, Erich W., and W. C. Clark. Foreign Trade and Shipping. Alexander Hamilton Institute, 1917.