Smithsonian Institution. Office of the Secretary. (1861). Instructions in reference to collecting nests and eggs of North American birds. publisher not identified.
Chicago Style (17th ed.) CitationSmithsonian Institution. Office of the Secretary. Instructions in Reference to Collecting Nests and Eggs of North American Birds. [S.l.: publisher not identified, 1861.
MLA (9th ed.) CitationSmithsonian Institution. Office of the Secretary. Instructions in Reference to Collecting Nests and Eggs of North American Birds. publisher not identified, 1861.
Warning: These citations may not always be 100% accurate.