?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=J+R&rft.au=Witcombe%2C+J+R&rft.aulast=Witcombe&rft.date=1985&rft.title=The+variability+in+the+yield+of+pearl+millet+varieties+and+hybrids+in+India+and+Pakistan&rft.genre=proceeding