APA (7th ed.) Citation
de Blij, H. J., & Birdsall, S. S. (1978). Geography: Regions and concepts (2nd ed.). John Wiley.
Chicago Style (17th ed.) Citation
de Blij, Harm J., and Stephen S. Birdsall. Geography: Regions and Concepts. 2nd ed. New York: John Wiley, 1978.
MLA (9th ed.) Citation
de Blij, Harm J., and Stephen S. Birdsall. Geography: Regions and Concepts. 2nd ed. John Wiley, 1978.
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