APA (7th ed.) Citation

Glassner, M. I., & De Blij, H. J. (1980). Systematic political geography (3d ed.). Wiley.

Chicago Style (17th ed.) Citation

Glassner, Martin Ira, and Harm J. De Blij. Systematic Political Geography. 3d ed. New York: Wiley, 1980.

MLA (8th ed.) Citation

Glassner, Martin Ira, and Harm J. De Blij. Systematic Political Geography. 3d ed. Wiley, 1980.