APA (7th ed.) Citation

Huntington, E., Williams, F. E., & Valkenburg, S. v. (1947). Economic and social geography (5. print.). Wiley [u.a.].

Chicago Style (17th ed.) Citation

Huntington, Ellsworth, Frank E. Williams, and Samuel van Valkenburg. Economic and Social Geography. 5. print. New York: Wiley [u.a.], 1947.

MLA (9th ed.) Citation

Huntington, Ellsworth, et al. Economic and Social Geography. 5. print. Wiley [u.a.], 1947.