?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=R+J&rft.au=Williams%2C+R+J&rft.aulast=Williams&rft.date=1983&rft.title=Breeding+for+disease+and+pest+resistance+in+pearl+millet&rft.genre=proceeding