TY  - BOOK
AU  - Parker
TI  - Waste-water engineering
SN  - 8123916434 (paperback)
PY  - 2008///
CY  - [S.l.]
PB  - CBS Publishers & Distributors Pvt.ltd.
UR  - http://www.amazon.com/exec/obidos/ASIN/8123916434/chopaconline-20
ER  -