Cita APA (7a ed.)

Bengtson, N. A., & Van Royen, W. (1950). Fundamentals of economic geography (3rd. ed.). Prentice-Hall.

Cita Chicago Style (17a ed.)

Bengtson, Nels A., y William Van Royen. Fundamentals of Economic Geography. 3rd. ed. New York: Prentice-Hall, 1950.

Cita MLA (8a ed.)

Bengtson, Nels A., y William Van Royen. Fundamentals of Economic Geography. 3rd. ed. Prentice-Hall, 1950.