TY  - BOOK
AU  - Masters, Gilbert M.
AU  -  Ela, Wendell P.
TI  - Introduction to environmental engineering and science
T2  - Eastern Economic Edition
SN  - 978-81-203-3691-9
AV  - TD145.M33 
CY  - New Delhi
KW  -  Environmental sciences
KW  -  Green technology
KW  - Environmental engineering
KW  - Sanitary engineering
ER  -