?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=V+M&rft.au=Mayande%2C+V+M&rft.aulast=Mayande&rft.atitle=A+comparison+of+moldboard+plows+for+dry+season+tillage+of+vertisols&rft.title=Soil+%26+Tillage+Research&rft.issn=0167-1987&rft.date=1990&rft.volume=15&rft.pages=349-358&rft.issue=4&rft.genre=article