Cita APA

Skinner, B. J., & Porter, S. C. (1989). The dynamic earth: An introduction to physical geology. New York: John Wiley & Sons.

Citación estilo Chicago

Skinner, Brian J., y Stephen C. Porter. The Dynamic Earth: An Introduction to Physical Geology. New York: John Wiley & Sons, 1989.

Cita MLA

Skinner, Brian J., y Stephen C. Porter. The Dynamic Earth: An Introduction to Physical Geology. New York: John Wiley & Sons, 1989.