?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aufirst=P&rft.au=Subrahmanyam%2C+P&rft.aulast=Subrahmanyam&rft.atitle=Response+of+six+groundnut+(Arachis+hypogaea+L.)+cultivars+to+fungicidal+control+of+leaf+spots+in+Niger&rft.title=Tropical+Agriculture(Trinidad)&rft.issn=0041-3216&rft.date=1990&rft.volume=67&rft.pages=331-336&rft.issue=4&rft.genre=article