APA (7th ed.) Citation

Patton, C. P., Kramer Fritz L, & Alexander Charles S. (1974). Physical geography (2d ed.). Duxbury Press.

Chicago Style (17th ed.) Citation

Patton, Clyde P., Kramer Fritz L, and Alexander Charles S. Physical Geography. 2d ed. North Scituate, Mass: Duxbury Press, 1974.

MLA (9th ed.) Citation

Patton, Clyde P., et al. Physical Geography. 2d ed. Duxbury Press, 1974.