Cita APA

Demeny, P. G. (1981). The North-South income gap: A demographic perspective. Population Council.

Citación estilo Chicago

Demeny, Paul George. The North-South Income Gap: A Demographic Perspective. New York: Population Council, 1981.

Cita MLA

Demeny, Paul George. The North-South Income Gap: A Demographic Perspective. Population Council, 1981.

Warning: These citations may not always be 100% accurate.