APA (7e ed.) Bronvermelding

(1980). Essentials of Geography and development: Concepts and processes. Macmillan.

Chicago (17e ed.) Bronvermelding

Essentials of Geography and Development: Concepts and Processes. New York: Macmillan, 1980.

MLA (9e ed.) Bronvermelding

Essentials of Geography and Development: Concepts and Processes. Macmillan, 1980.

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