Smithsonian Institution. (1923). Life histories of North American wild fowl: Order Anseres (part). GPO.
Chicago Style (17th ed.) CitationSmithsonian Institution. Life Histories of North American Wild Fowl: Order Anseres (part). [Washington]: GPO, 1923.
MLA (9th ed.) CitationSmithsonian Institution. Life Histories of North American Wild Fowl: Order Anseres (part). GPO, 1923.
Warning: These citations may not always be 100% accurate.