Citazione Stile APA (7a Edizione)

Oberlander, T. M., & Muller, R. A. (1987). Essentials of physical geography today (2nd ed.). Random House.

Citazione stile Chigago Style (17a edizione)

Oberlander, Theodore M., e Robert A. Muller. Essentials of Physical Geography Today. 2nd ed. New York: Random House, 1987.

Citatione MLA (9a ed.)

Oberlander, Theodore M., e Robert A. Muller. Essentials of Physical Geography Today. 2nd ed. Random House, 1987.