TY  - BOOK
AU  - Masters, Gilbert M.
AU  - Ela, Wendell P.
TI  - Introduction to environmental engineering and science
SN  - 9789332549760
U1  - 628 
PY  - 2015///
CY  - New Delhi
PB  - Pearson
KW  - Environmental engineering
KW  - Environmental protection engineering
ER  -