Cita APA (7a ed.)

Emmons, W. H., Allison, I. S., Stauffer, C. R., & Thiel, G. A. (1960). Geology: Principles and processes (5th. ed.). McGraw - Hill.

Cita Chicago Style (17a ed.)

Emmons, William H., Ira S. Allison, Clinton R. Stauffer, y George A. Thiel. Geology: Principles and Processes. 5th. ed. New York: McGraw - Hill, 1960.

Cita MLA (9a ed.)

Emmons, William H., et al. Geology: Principles and Processes. 5th. ed. McGraw - Hill, 1960.