APA (7th ed.) Citation

Kimmel, A., Backler, A., & Lazarus, S. (1986). World geography. McDougal, Littell.

Chicago Style (17th ed.) Citation

Kimmel, Alan, Alan Backler, and Stuart Lazarus. World Geography. Evanston, Ill. [u.a.]: McDougal, Littell, 1986.

MLA (9th ed.) Citation

Kimmel, Alan, et al. World Geography. McDougal, Littell, 1986.