APA (7th ed.) Citation

Grosvenor, D. K., & Foster, L. (1977). The blue whale. National Geographic Society.

Chicago Style (17th ed.) Citation

Grosvenor, Donna K., and Larry Foster. The Blue Whale. [Washington, D.C.]: National Geographic Society, 1977.

MLA (9th ed.) Citation

Grosvenor, Donna K., and Larry Foster. The Blue Whale. National Geographic Society, 1977.