APA (7th ed.) Citation

Jerome, B. A., & Keck, N. (2005). Geologic history. Visual Learning Systems.

Chicago Style (17th ed.) Citation

Jerome, Brian A., and Nina Keck. Geologic History. Brandon, VT: Visual Learning Systems, 2005.

MLA (9th ed.) Citation

Jerome, Brian A., and Nina Keck. Geologic History. Visual Learning Systems, 2005.