APA (7th ed.) Citation

Montgomery, C. W., & Dathe, D. (1997). Earth: Then and now (3rd ed.). Wm. C. Brown Publishers.

Chicago Style (17th ed.) Citation

Montgomery, Carla W., and David Dathe. Earth: Then and Now. 3rd ed. Dubuque, IA: Wm. C. Brown Publishers, 1997.

MLA (9th ed.) Citation

Montgomery, Carla W., and David Dathe. Earth: Then and Now. 3rd ed. Wm. C. Brown Publishers, 1997.