APA (7th ed.) Citation

Skinner, B. J., & Porter, S. C. (1989). The dynamic earth : an introducion to physical geography / Brian J. Skinner, Stephen C. Porter: An introducion to physical geography. Wiley.

Chicago Style (17th ed.) Citation

Skinner, Brian J., and Stephen C. Porter. The Dynamic Earth : An Introducion to Physical Geography / Brian J. Skinner, Stephen C. Porter: An Introducion to Physical Geography. Wiley, 1989.

MLA (9th ed.) Citation

Skinner, Brian J., and Stephen C. Porter. The Dynamic Earth : An Introducion to Physical Geography / Brian J. Skinner, Stephen C. Porter: An Introducion to Physical Geography. Wiley, 1989.

Warning: These citations may not always be 100% accurate.