https://opac.iub.edu.bd/cgi-bin/koha/opac-search.pl?q=ccl=%28su%3A%7BBiological%20treatment%7D%29&sort_by=title_az&format=rss 2 0 50 ISBN: https://opac.iub.edu.bd/cgi-bin/koha/opac-detail.pl?biblionumber=13528 ]]> London : IWA Pub., 2008 .
511 p. : 29 cm.+ 1 CD-ROM (4 3/4 in.).

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]]> https://opac.iub.edu.bd/cgi-bin/koha/opac-detail.pl?biblionumber=13528 ISBN: https://opac.iub.edu.bd/cgi-bin/koha/opac-detail.pl?biblionumber=8369 ]]> By McEldowney, Sharron.
Essex : Longman Scientific and Technical, 1993 .
xix, 322 p. : 23.5 cm..

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