APA (7th ed.) Citation
de Blij, H. J., & Birdsall, S. (1974). Essential of geography: Regions and concets. John Wiley.
Chicago Style (17th ed.) Citation
de Blij, Harm J., and Stephen Birdsall. Essential of Geography: Regions and Concets. New York: John Wiley, 1974.
MLA (9th ed.) Citation
de Blij, Harm J., and Stephen Birdsall. Essential of Geography: Regions and Concets. John Wiley, 1974.
Warning: These citations may not always be 100% accurate.