Citazione Stile APA (7a Edizione)

Stansfield, C. A., Jr, & Zimolzak, C. E. (1990). Global perspectives: A world regional geography. Merrill.

Citazione stile Chigago Style (17a edizione)

Stansfield, Charles A., Jr, e Chester E. Zimolzak. Global Perspectives: A World Regional Geography. Columbus: Merrill, 1990.

Citatione MLA (9a ed.)

Stansfield, Charles A., Jr, e Chester E. Zimolzak. Global Perspectives: A World Regional Geography. Merrill, 1990.