?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=D+E&rft.au=Padgham%2C+D+E&rft.aulast=Padgham&rft.atitle=Resistance+in+groundnut+(Arachis+hypogaea+L.)+to+Aphis+craccivora+(Koch)&rft.title=Annals+of+Applied+Biology&rft.issn=1744-7348&rft.date=1990&rft.volume=117&rft.pages=285-294&rft.issue=2&rft.genre=article