Cita APA (7a ed.)

Bengtson, N. A., & Royen, W. v. (1953). Fundamentals of economic geography (1st english ed.). Constable and Company.

Cita Chicago Style (17a ed.)

Bengtson, Nels A., y William van Royen. Fundamentals of Economic Geography. 1st english ed. London: Constable and Company, 1953.

Cita MLA (9a ed.)

Bengtson, Nels A., y William van Royen. Fundamentals of Economic Geography. 1st english ed. Constable and Company, 1953.