APA (7. basım) Alıntı

Keller, E. A. (2012). Introduction to environmental geology (5th ed.). Prentice Hall.

Chicago Style (17. basım) Atıf

Keller, Edward A. Introduction to Environmental Geology. 5th ed. Upper Saddle River, NJ: Prentice Hall, 2012.

MLA (9th ed.) Atıf

Keller, Edward A. Introduction to Environmental Geology. 5th ed. Prentice Hall, 2012.