Cita APA

Churchill, A. A. 1., & De Ferranti, D. M. 1. (1987). Rural water supply and sanitation: Time for a change. Washington, D.C.: The World Bank.

Citación estilo Chicago

Churchill, Anthony A. 1938-, y David M. 1945- De Ferranti. Rural Water Supply and Sanitation: Time for a Change. Washington, D.C.: The World Bank, 1987.

Cita MLA

Churchill, Anthony A. 1938-, y David M. 1945- De Ferranti. Rural Water Supply and Sanitation: Time for a Change. Washington, D.C.: The World Bank, 1987.