?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Sharma%2C+H+C&rft.aufirst=H+C&rft.aulast=Sharma&rft.issn=1573-5060&rft.pages=193-200&rft.atitle=Genotypic+resistance+in+sorghum+to+head+bug%2C+Calocoris+angustatus+Lethiery&rft.volume=58&rft.issue=3&rft.title=Euphytica&rft.date=1992&rft.genre=article