APA (7th ed.) Citation

Wulfert, M. A. (1926). International trade in butter and cheese. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Wulfert, M. A. International Trade in Butter and Cheese. [Washington?]: U.S. Government Printing Office, 1926.

MLA (9th ed.) Citation

Wulfert, M. A. International Trade in Butter and Cheese. U.S. Government Printing Office, 1926.