TY  - BOOK
AU  - Masters,Gilbert M.
AU  - Ela,Wendell P.,1
TI  - Introduction to environmental engineering and science
SN  - 9789332549760
U1  - 628.0154 
PY  - 2015///
CY  - New Delhi
PB  - Pearson
KW  - Environmental engineering
KW  - Civil Engineering
ER  -