Cita APA

McCarthy, F. D., & Wolf, H. C. (2001). Comparative life expectancy in Africa. World Bank.

Citación estilo Chicago

McCarthy, F. Desmond, and Holger C. Wolf. Comparative Life Expectancy in Africa. Washington, D.C: World Bank, 2001.

Cita MLA

McCarthy, F. Desmond, and Holger C. Wolf. Comparative Life Expectancy in Africa. World Bank, 2001.