Nomenclature of North American birds chiefly contained in the United States National Museum.
By Robert Ridgway.

APA Citation

Ridgway, R. (1881). Nomenclature of North American birds chiefly contained in the United States National Museum. Washington: Govt. Print. Off..

MLA Citation

Ridgway, Robert, 1850-1929. Nomenclature of North American Birds Chiefly Contained In the United States National Museum. Washington: Govt. Print. Off., 1881.

Warning: These citations may not always be complete (especially for serials).