TY  - BOOK
AU  - Banik, Sudip Datta  .
TI  - Environmental challenges of the 21st century / 
SN  - 978-81-313-0660-4
U1  - G:55(X) 
PY  - 2009///
CY  - New Delhi : 
PB  - A P H Publishing Corporation , 
KW  - Biology- Enviromental Challenges
ER  -