APA (7th ed.) Citation

Eakin, H. M. (1916). The Yukon-Koyukuk region, Alaska. Department of the Interior, United States Geological Survey.

Chicago Style (17th ed.) Citation

Eakin, Henry M. The Yukon-Koyukuk Region, Alaska. [Washington, D.C.]: Department of the Interior, United States Geological Survey, 1916.

MLA (9th ed.) Citation

Eakin, Henry M. The Yukon-Koyukuk Region, Alaska. Department of the Interior, United States Geological Survey, 1916.