Bengtson, N. A. (1950). Fundamentals of economic geography (3rd ed.). Prentice-Hall.
Chicago (17e ed.) BronvermeldingBengtson, Nels August. Fundamentals of Economic Geography. 3rd ed. New York: Prentice-Hall, 1950.
MLA (9e ed.) BronvermeldingBengtson, Nels August. Fundamentals of Economic Geography. 3rd ed. Prentice-Hall, 1950.
Let op: Deze citaties zijn niet altijd 100% accuraat.