United States National Museum & Ridgway, R. (1881). Nomenclature of North American birds, chiefly contained in U.S. National Museum. U.S. Government Printing Office.
Chicago Style (17th ed.) CitationUnited States National Museum and Robert Ridgway. Nomenclature of North American Birds, Chiefly Contained in U.S. National Museum. [Place of publication not identified]: U.S. Government Printing Office, 1881.
MLA (9th ed.) CitationUnited States National Museum and Robert Ridgway. Nomenclature of North American Birds, Chiefly Contained in U.S. National Museum. U.S. Government Printing Office, 1881.
Warning: These citations may not always be 100% accurate.