APA aipamena

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

Chicago Style aipamena

Judson, Sheldon, and Marvin E. Kauffman. Physical Geology. 8th ed. Englewood Cliffs, New Jersey: Prentice-Hall, Inc, 1990.

MLA aipamena

Judson, Sheldon, and Marvin E. Kauffman. Physical Geology. 8th ed. Prentice-Hall, Inc, 1990.