APA (7th ed.) Citation

Smithsonian Institution. (1944). A field collector's manual in natural history. Smithsonian institution.

Chicago Style (17th ed.) Citation

Smithsonian Institution. A Field Collector's Manual in Natural History. Washington, D.C.: Smithsonian institution, 1944.

MLA (9th ed.) Citation

Smithsonian Institution. A Field Collector's Manual in Natural History. Smithsonian institution, 1944.

Warning: These citations may not always be 100% accurate.