Não informado. (1976). Irricab: Current annotaded bibliography of irrigation. International Irrigation information Center.
Chicago-referens (17:e uppl.)Não informado. Irricab: Current Annotaded Bibliography of Irrigation. Bet Dagan, Israel: International Irrigation information Center, 1976.
MLA-referens (8:e uppl.)Não informado. Irricab: Current Annotaded Bibliography of Irrigation. International Irrigation information Center, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.