APA (7th ed.) Citation

Bengtson, N. A., & Van Royen, W. 1. j. a. (1956). Fundamentals of economic geography (4th ed.). Prentice-Hall.

Chicago Style (17th ed.) Citation

Bengtson, N. A., and William 1900- joint auth Van Royen. Fundamentals of Economic Geography. 4th ed. Englewood Cliffs, N. J: Prentice-Hall, 1956.

MLA (9th ed.) Citation

Bengtson, N. A., and William 1900- joint auth Van Royen. Fundamentals of Economic Geography. 4th ed. Prentice-Hall, 1956.