Style de citation APA

Eskeland, G. S., Traa-Valerezo, X., & Lewis, M. (1999). Challenging El Salvador's Rural Health Care Strategy. The World Bank.

Style de citation Chicago

Eskeland, Gunnar S., Ximena Traa-Valerezo, et Maureen Lewis. Challenging El Salvador's Rural Health Care Strategy. Washington, D.C: The World Bank, 1999.

Style de citation MLA

Eskeland, Gunnar S., et al. Challenging El Salvador's Rural Health Care Strategy. The World Bank, 1999.