?url_ver=Z39.88-2004&rft_id=doi%3A10.1038%2Fsj.jim.2900474&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=20&rft.date=1998&rft.issn=1367-5435&rft.atitle=Production+of+biosurfactant+at+mesophilic+and+thermophilic+conditions+by+a+strain+of+Bacillus+subtilis&rft.title=Journal+of+Industrial+Microbiology+and+Biotechnology&rft.pages=48-52&rft.genre=article