APA (7th ed.) Citation

Huntington, E., & Cushing, S. W. (1940). Principles of human geography (5th ed.). J. Wiley & sons, inc.; Chapman & Hall, limited.

Chicago Style (17th ed.) Citation

Huntington, Ellsworth, and Sumner Webster Cushing. Principles of Human Geography. 5th ed. New York : London: J. Wiley & sons, inc.; Chapman & Hall, limited, 1940.

MLA (9th ed.) Citation

Huntington, Ellsworth, and Sumner Webster Cushing. Principles of Human Geography. 5th ed. J. Wiley & sons, inc.; Chapman & Hall, limited, 1940.