Dyfyniad APA

Churchill, A. A. (1987). Rural water supply and sanitation: Time for a change. World Bank.

Dyfyniad Arddull Chicago

Churchill, Anthony A. Rural Water Supply and Sanitation: Time for a Change. Washington: World Bank, 1987.

Dyfyniad MLA

Churchill, Anthony A. Rural Water Supply and Sanitation: Time for a Change. World Bank, 1987.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.