TY  - BOOK
AU  - Spellman, Frank R.
TI  - Spellman's standard handbook for wastewater operators
SN  - 1-56676-741-5
PB  - Technomic Pub. Co.
UR  - http://krc.clri.res.in:80/cgi-bin/koha/opac-detail.pl?biblionumber=13014
ER  -