APA (7th ed.) Citation

United States. Bureau of Plant Quarantine. (1933). Directory of field activities of Bureau of Plant Quarantine, 1933. [s.n.].

Chicago Style (17th ed.) Citation

United States. Bureau of Plant Quarantine. Directory of Field Activities of Bureau of Plant Quarantine, 1933. [Washington]: [s.n.], 1933.

MLA (9th ed.) Citation

United States. Bureau of Plant Quarantine. Directory of Field Activities of Bureau of Plant Quarantine, 1933. [s.n.], 1933.

Warning: These citations may not always be 100% accurate.