APA (7th ed.) Citation

Judson, S., & Kauffman, M. E. (1990). Physical geology (8th ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

Judson, Sheldon, and Marvin Earl Kauffman. Physical Geology. 8th ed. Englewood Cliffs, N.J.: Prentice Hall, 1990.

MLA (9th ed.) Citation

Judson, Sheldon, and Marvin Earl Kauffman. Physical Geology. 8th ed. Prentice Hall, 1990.