TY  - BOOK
AU  - Dara,S.S
TI  - A textbook of engineering chemistry
SN  - 9788121903592
U1  - 660.2 DAR 
PY  - 1986///
CY  - New Delhi
PB  - S.Chand
KW  - Water treatment
KW  - photochemistry
KW  - green chemistry
ER  -