APA (7e ed.) Bronvermelding

Dubey, R. N. (1964). Economic and commercial geography ([11th ed.].). Kitab Mahal.

Chicago (17e ed.) Bronvermelding

Dubey, R. N. Economic and Commercial Geography. [11th ed.]. Allahabad: Kitab Mahal, 1964.

MLA (8e ed.) Bronvermelding

Dubey, R. N. Economic and Commercial Geography. [11th ed.]. Kitab Mahal, 1964.

Let op: Deze citaties zijn niet altijd 100% accuraat.