TY  - BOOK
AU  - National Tehnical Information Service
TI  - Activated sludge treatment volme 1. 1970- 1975: citations from the engineering index data base
PY  - 1975///
CY  - Springfield
PB  - National Technical Information Service
UR  - http://krc.clri.res.in:80/cgi-bin/koha/opac-detail.pl?biblionumber=6551
ER  -