?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=O+P&rft.au=Rupela%2C+O+P&rft.aulast=Rupela&rft.atitle=A+Visual+Rating+System+for+Nodulation+of+Chickpea&rft.title=International+Chickpea+Newsletter&rft.date=1990&rft.volume=22&rft.pages=22-25&rft.genre=article