APA (7th ed.) Citation

Pan American Union. (1941). The Pan American Bookshelf, index to volume 3, 1940. [s.n.].

Chicago Style (17th ed.) Citation

Pan American Union. The Pan American Bookshelf, Index to Volume 3, 1940. [Washington]: [s.n.], 1941.

MLA (9th ed.) Citation

Pan American Union. The Pan American Bookshelf, Index to Volume 3, 1940. [s.n.], 1941.