APA (7th ed.) Citation

(1940). Bulletin of the Pan American Union: Commemorative issue : the fiftieth anniversary of the Pan American Union. Pan American Union, U.S. Govt. Print. Office.

Chicago Style (17th ed.) Citation

Bulletin of the Pan American Union: Commemorative Issue : The Fiftieth Anniversary of the Pan American Union. Washington, D.C.: Pan American Union, U.S. Govt. Print. Office, 1940.

MLA (9th ed.) Citation

Bulletin of the Pan American Union: Commemorative Issue : The Fiftieth Anniversary of the Pan American Union. Pan American Union, U.S. Govt. Print. Office, 1940.