?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=J+H&rft.au=Williams%2C+J+H&rft.aulast=Williams&rft.date=1985&rft.title=Some+Physiological+Reasons+For+Genotype+X+Drought+Interactions+In+Groundnuts&rft.tpages=8&rft.genre=proceeding