APA (7th ed.) Citation

Christopherson, R. W. (1997). Geosystems: An introduction to physical geography (3rd ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Christopherson, Robert W. Geosystems: An Introduction to Physical Geography. 3rd ed. Upper Saddle River, NJ: Prentice-Hall, 1997.

MLA (8th ed.) Citation

Christopherson, Robert W. Geosystems: An Introduction to Physical Geography. 3rd ed. Prentice-Hall, 1997.