Παραπομπή σε μορφή APA (7η εκδ.)

Demeny, P. G. (1981). The North-South income gap: A demographic perspective. Ajit Bhagat Memorial Trust.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Demeny, Paul George. The North-South Income Gap: A Demographic Perspective. Ahmedabad: Ajit Bhagat Memorial Trust, 1981.

Παραπομπή σε μορφή MLA (8th εκδ.)

Demeny, Paul George. The North-South Income Gap: A Demographic Perspective. Ajit Bhagat Memorial Trust, 1981.