?url_ver=Z39.88-2004&rft_id=doi%3A10.1038%2Fsj.jim.2900349&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Makkar%2C+R+S&rft.aulast=Makkar&rft.aufirst=R+S&rft.issue=1&rft.volume=18&rft.date=1997&rft.issn=1367-5435&rft.atitle=Biosurfactant+production+by+a+thermophilic+Bacillus+subtilis+strain.&rft.title=Journal+of+Industrial+Microbiology+and+Biotechnology&rft.pages=37-42&rft.genre=article