Citazione Stile APA (7a Edizione)

ROYEN, W. V., & BENGTSON, N. A. (1964). Fundamentals of economic geography: An introduction tothe study of resources. Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

ROYEN, William Van, e Nels A. BENGTSON. Fundamentals of Economic Geography: An Introduction Tothe Study of Resources. Englewood Cliffs: Prentice-Hall, 1964.

Citatione MLA (9a ed.)

ROYEN, William Van, e Nels A. BENGTSON. Fundamentals of Economic Geography: An Introduction Tothe Study of Resources. Prentice-Hall, 1964.