APA (7th ed.) Citation

Foster, J., & Stanfield, J. L. (1972). Dogs working for people. National Geographic Society.

Chicago Style (17th ed.) Citation

Foster, Joanna, and James L. Stanfield. Dogs Working for People. [Washington]: National Geographic Society, 1972.

MLA (9th ed.) Citation

Foster, Joanna, and James L. Stanfield. Dogs Working for People. National Geographic Society, 1972.