TY  - BOOK
AU  - Yugananth, P. 
AU  - Kumaravelan, R.
TI  - Environmental Science and Engineering
SN  - 9788183717014
U1  - 628 YUG 
PY  - 2015///
CY  - New Delhi
PB  - Scitech Publications (India) Pvt Ltd
KW  - Environmental science
ER  -