Bamberger, M., Gonzalez-Polio, E., & Sae-Hau, U. (1982). Evaluation of sites and services projects: The evidence from El Salvador. World Bank.
Cita Chicago (17th ed.)Bamberger, Michael, Edgardo Gonzalez-Polio, i Umnuay Sae-Hau. Evaluation of Sites and Services Projects: The Evidence from El Salvador. Washington, D.C: World Bank, 1982.
Cita MLA (9th ed.)Bamberger, Michael, et al. Evaluation of Sites and Services Projects: The Evidence from El Salvador. World Bank, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.