Cita APA

De Blij, H. J. (1967). Systematic political geography. Wiley.

Citación estilo Chicago

De Blij, Harm J. Systematic Political Geography. New York: Wiley, 1967.

Cita MLA

De Blij, Harm J. Systematic Political Geography. Wiley, 1967.

Warning: These citations may not always be 100% accurate.