Cita APA

Pritchett, L. H. 1., & Summers, L. H. 1. (1993). Wealthier is healthier. Washington, DC: The World Bank.

Citación estilo Chicago

Pritchett, Lant H. 1959-, y Lawrence Henry 1954- Summers. Wealthier Is Healthier. Washington, DC: The World Bank, 1993.

Cita MLA

Pritchett, Lant H. 1959-, y Lawrence Henry 1954- Summers. Wealthier Is Healthier. Washington, DC: The World Bank, 1993.