Não informado. (2019). The Water Wheel. Water Research Commission.
Lua i Stíl Chicago (17ú heag.)Não informado. The Water Wheel. Pretoria, Africa do Sul: Water Research Commission, 2019.
Lua MLA (8ú heag.)Não informado. The Water Wheel. Water Research Commission, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.