APA (7th ed.) Citation

Oswald, J. M., Chapin, J. R., & La Raus, R. (1976). Planet earth. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Oswald, James M., June R. Chapin, and Roger La Raus. Planet Earth. Boston: Houghton Mifflin, 1976.

MLA (9th ed.) Citation

Oswald, James M., et al. Planet Earth. Houghton Mifflin, 1976.