TY  - BOOK
AU  - Masters, Gilbert M.
AU  - Ela, Wendell P,
TI  - Introduction to environmental engineering and science
SN  - 9788120336919
U1  - 628 
PY  - 2019///
CY  - New Delhi
PB  - Pearson India
KW  - Sanitary & municipal engineering
KW  - ENGINEERING
ER  -