Não informado. (1976). Irricab: Current annotaded bibliography of irrigation. International Irrigation information Center.
Lua i Stíl Chicago (17ú heag.)Não informado. Irricab: Current Annotaded Bibliography of Irrigation. Bet Dagan, Israel: International Irrigation information Center, 1976.
Lua MLA (8ú heag.)Não informado. Irricab: Current Annotaded Bibliography of Irrigation. International Irrigation information Center, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.