TY  - GEN
AU  - P.Meenakshi
AU  - 
ED  - 
ED  - 
ED  - 
TI  - Elements of environmental science and engineering
SN  - 9788120345232
U1  - 363.7 
PY  - 2012///
CY  - New Delhi
PB  - PHI Learning
KW  - 
KW  - Environmental  Science
ER  -