Cita APA (7a ed.)

Chernicoff, S., & Whitney, D. (2007). Geology: An introduction to physical geology (4th ed.). Pearson Prentice Hall.

Cita Chicago Style (17a ed.)

Chernicoff, Stanley, y Donna Whitney. Geology: An Introduction to Physical Geology. 4th ed. Upper Saddle River, N.J: Pearson Prentice Hall, 2007.

Cita MLA (9a ed.)

Chernicoff, Stanley, y Donna Whitney. Geology: An Introduction to Physical Geology. 4th ed. Pearson Prentice Hall, 2007.