TY  - BOOK
AU  - Elangovan,R.
AU  - M.K.Saseetharan
TI  - Unit operations in environmental engineering
SN  - 8122410979
U1  - 628 20
PY  - 1997///
CY  - New Delhi
PB  - New age
KW  - Sanitary engineering
N1  - Includes bibliography and index
ER  -