Citazione Stile APA (7a Edizione)

Boehm, R. G. (1995). Glencoe world geography: A physical and cultural approach (4th ed.). Glencoe.

Citazione stile Chigago Style (17a edizione)

Boehm, Richard G. Glencoe World Geography: A Physical and Cultural Approach. 4th ed. New York: Glencoe, 1995.

Citatione MLA (8a ed.)

Boehm, Richard G. Glencoe World Geography: A Physical and Cultural Approach. 4th ed. Glencoe, 1995.