APA (7th ed.) Citation

Smithsonian Institution, Sturtevant, W. C., & Helm, J. (1981). Handbook of North American Indians. Smithsonian Institution.

Chicago Style (17th ed.) Citation

Smithsonian Institution, William C. Sturtevant, and June Helm. Handbook of North American Indians. Washington: Smithsonian Institution, 1981.

MLA (9th ed.) Citation

Smithsonian Institution, et al. Handbook of North American Indians. Smithsonian Institution, 1981.

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