APA aipamena

Dohrs, F. E., Sommers, L. M., & Petterson, D. R. (1955). Outside readings in geography. Thomas Y. Crowell Co..

Chicago Style aipamena

Dohrs, Fred E., Lawrence M. Sommers, and Donald R. Petterson. Outside Readings in Geography. New York: Thomas Y. Crowell Co., 1955.

MLA aipamena

Dohrs, Fred E., et al. Outside Readings in Geography. Thomas Y. Crowell Co., 1955.