APA (7th ed.) Citation

Spencer, J. E., Thomas, W. L., & Winter, R. E. (1978). Introducing cultural geography. Wiley.

Chicago Style (17th ed.) Citation

Spencer, Joseph Earle, W. L. Thomas, and Robert E. Winter. Introducing Cultural Geography. New York: Wiley, 1978.

MLA (9th ed.) Citation

Spencer, Joseph Earle, et al. Introducing Cultural Geography. Wiley, 1978.