TY  - BOOK
AU  - Sawyer, Clair N.
AU  - Mccarty, Perry L.
TI  - Chemistry for Environmental Engineering 
SN  - 0070549710
U1  - 628.0154 
PY  - 1978///
CY  - New York : 
PB  - McGraw-Hill, 
KW  - Environmental Chemistry
KW  - Sanitary Engineering
N1  - YY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-07-054971-0.pdf
ER  -