Citazione Stile APA (7a Edizione)

Pipkin, B. W. (2001). Geology and the environment (3rd ed.). Brooks/Cole Thomson Learning.

Citazione stile Chigago Style (17a edizione)

Pipkin, Bernard W. Geology and the Environment. 3rd ed. Pacific Grove, CA: Brooks/Cole Thomson Learning, 2001.

Citatione MLA (9a ed.)

Pipkin, Bernard W. Geology and the Environment. 3rd ed. Brooks/Cole Thomson Learning, 2001.