?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=S+B&rft.au=Sharma%2C+S+B&rft.aulast=Sharma&rft.atitle=Global+status+of+nematode+problems+of+groundnut%2C+pigeonpea%2C+chickpea%2C+sorghum+and+pearl+millet%2C+and+suggestions+for+future+work&rft.title=Crop+Protection&rft.issn=0261-2194&rft.date=1990&rft.volume=9&rft.pages=453-458&rft.issue=6&rft.genre=article