APA (7th ed.) Citation

Smithsonian Institution. (1921). Distribution of bird life in Urubama Valley of Peru: Report on birds collected by Yale University-National Geographic Society's expeditions. GPO.

Chicago Style (17th ed.) Citation

Smithsonian Institution. Distribution of Bird Life in Urubama Valley of Peru: Report on Birds Collected by Yale University-National Geographic Society's Expeditions. [Washington]: GPO, 1921.

MLA (9th ed.) Citation

Smithsonian Institution. Distribution of Bird Life in Urubama Valley of Peru: Report on Birds Collected by Yale University-National Geographic Society's Expeditions. GPO, 1921.