APA-Zitierstil (7. Ausg.)

Petersen, J. F., Sack, D., & Gabler, B. (2011). Fundamentals of physical geography (International ed.). Brooks/Cole, Cengage Learning.

Chicago-Zitierstil (17. Ausg.)

Petersen, James F., Dorothy Sack, und Bob Gabler. Fundamentals of Physical Geography. International ed. Belmont, CA: Brooks/Cole, Cengage Learning, 2011.

MLA-Zitierstil (9. Ausg.)

Petersen, James F., et al. Fundamentals of Physical Geography. International ed. Brooks/Cole, Cengage Learning, 2011.