TY  - BOOK
AU  - Masters,Gilbert M.
AU  - Ela,Wendell P.
TI  - Introduction to environmental engineering and science
SN  - 9788120336919
U1  - 628.5/MAS 
PY  - 2014///
CY  - Delhi
PB  - PHI
KW  - English
KW  - Civil Engineering
ER  -