Churchill, A. A. (1987). Rural water supply and sanitation: Time for a change. World Bank.
Lua i Stíl Chicago (17ú heag.)Churchill, Anthony A. Rural Water Supply and Sanitation: Time for a Change. Washington: World Bank, 1987.
Lua MLA (9ú heag.)Churchill, Anthony A. Rural Water Supply and Sanitation: Time for a Change. World Bank, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.