APA (7th ed.) Citation

(1926). Directory of field activities of Bureau of Entomology. GPO.

Chicago Style (17th ed.) Citation

Directory of Field Activities of Bureau of Entomology. [Washington]: GPO, 1926.

MLA (9th ed.) Citation

Directory of Field Activities of Bureau of Entomology. GPO, 1926.

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