?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=A+P&rft.au=Padma+Kumari%2C+A+P&rft.aulast=Padma+Kumari&rft.inst=Andhra+Pradesh+Agricultural+Univerisity&rft.date=1990&rft.title=Mechanisms+of+Resistance+in+Sorghum+to+Earhead+Bug+Calocoris+Angustatus+Lethierry&rft.tpages=107&rft.degree=Masters