Παραπομπή σε μορφή APA (7η εκδ.)

Caldwell, J. C. (1975). The Sahelian drought and its demographic implications. Overseas Liaison Committee, American Council on Education.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Caldwell, John C. The Sahelian Drought and Its Demographic Implications. [Washington]: Overseas Liaison Committee, American Council on Education, 1975.

Παραπομπή σε μορφή MLA (8th εκδ.)

Caldwell, John C. The Sahelian Drought and Its Demographic Implications. Overseas Liaison Committee, American Council on Education, 1975.