APA (7th ed.) Citation

Friedmann, H. (1930). Birds collected by the Childs Frick expedition to Ethiopia and Kenya colony. U. S. Govt. print. off.

Chicago Style (17th ed.) Citation

Friedmann, Herbert. Birds Collected by the Childs Frick Expedition to Ethiopia and Kenya Colony. Washington: U. S. Govt. print. off, 1930.

MLA (9th ed.) Citation

Friedmann, Herbert. Birds Collected by the Childs Frick Expedition to Ethiopia and Kenya Colony. U. S. Govt. print. off, 1930.