TY  - BOOK
AU  - Sivakumar, Raman
TI  - Introduction to environmental science and engineering 
SN  - 978007067802
U1  - 333.7 
PY  - 2010///
CY  - New Delhi
PB  - Tata McGraw-Hill Education
KW  - Environmental science
N1  - Includes index and two marks questions and answers
ER  -