?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=K+R&rft.au=Kranthi%2C+K+R&rft.aulast=Kranthi&rft.atitle=Pyrethroid+Resistance+and+Mechanisms+of+Resistance+in+Field+Strains+of+Helicoverpa+armigera+(Lepidoptera%3A+Noctuidae)&rft.title=Journal+of+Economic+Entomology&rft.issn=0022-0493&rft.date=2001&rft.volume=94&rft.pages=253-263&rft.issue=1&rft.genre=article