APA (7th ed.) Citation

BLIJ, H. J. (1974). Essentials of geography: Regions and concepts. John Wiley and Sons.

Chicago Style (17th ed.) Citation

BLIJ, Harm J. Essentials of Geography: Regions and Concepts. New York: John Wiley and Sons, 1974.

MLA (9th ed.) Citation

BLIJ, Harm J. Essentials of Geography: Regions and Concepts. John Wiley and Sons, 1974.