?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Gopalakrishnan%2C+S&rft.aufirst=S&rft.aulast=Gopalakrishnan&rft.date=1994&rft.title=Studies+on+Rhizobium+of+Sesbania+bispinosa+a+green+manure+plant+and+looking+for+a+megastrain+&rft.genre=proceeding