TY  - BOOK
AU  - Raj,S.Amal
TI  - Introduction to environmental science and technology: For engineering and degree classes
SN  - 9788131805060
AV  - 628 
U1  - 628 22
PY  - 2008///
CY  - New Delhi
PB  - UNIVERSITY SCIENCE PRESS
N1  - Include Reference
ER  -