Jordan, T. D. (1984). A handbook of gravity-flow water systems for small communities. Intermediate Technology.
Lua i Stíl Chicago (17ú heag.)Jordan, Thomas D. A Handbook of Gravity-flow Water Systems for Small Communities. London: Intermediate Technology, 1984.
Lua MLA (9ú heag.)Jordan, Thomas D. A Handbook of Gravity-flow Water Systems for Small Communities. Intermediate Technology, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.