Citazione Stile APA (7a Edizione)

de Blij, H., & Muller, p. O. (1996). Physical geography of the global environment (2nd ed.). John Wiley.

Citazione stile Chigago Style (17a edizione)

de Blij, H.J, e peter O. Muller. Physical Geography of the Global Environment. 2nd ed. New York: John Wiley, 1996.

Citatione MLA (9a ed.)

de Blij, H.J, e peter O. Muller. Physical Geography of the Global Environment. 2nd ed. John Wiley, 1996.