?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Tibebe%2C+M&rft.aufirst=M&rft.aulast=Tibebe&rft.issn=2224-3186&rft.pages=117-128&rft.atitle=Water+Demand+Analysis+and+Irrigation+Requirement+for+Major+Crops+at+Holetta+Catchment%2C+Awash+Subbasin%2C+Ethiopia&rft.volume=5&rft.issue=15&rft.title=Journal+of+Natural+Sciences+Research&rft.date=2015&rft.genre=article