?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Jain%2C+R+K&rft.aulast=Jain&rft.aufirst=R+K&rft.volume=12&rft.date=1991&rft.atitle=Specific+deletion+of+a+large+segment+of+pRA500%3A+A+3%2C+5-xylenal+degradative+plasmid.&rft.title=Letters+Appl.+Microbiol&rft.pages=216-220&rft.genre=article