APA (7th ed.) Citation

Case, E. C., & Bergsmark, D. R. (1940). College geography (2nd ed.). J. Wiley and Sons.

Chicago Style (17th ed.) Citation

Case, Earl Clark, and Daniel R. Bergsmark. College Geography. 2nd ed. New York: J. Wiley and Sons, 1940.

MLA (9th ed.) Citation

Case, Earl Clark, and Daniel R. Bergsmark. College Geography. 2nd ed. J. Wiley and Sons, 1940.