Dyfyniad APA

Hill, A. G. (1990). Determinants of health and mortality in Africa. Population Council.

Dyfyniad Arddull Chicago

Hill, Allan G. Determinants of Health and Mortality in Africa. New York: Population Council, 1990.

Dyfyniad MLA

Hill, Allan G. Determinants of Health and Mortality in Africa. Population Council, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.