TY  - BOOK
AU  - Nambiar, Raghavan, K 
TI  - Text book of environmental studies 
SN  - 978-81-8371-111-1 
U1  - 628 NAM  
PY  - 2008///
CY  - Scitech 
PB  - Channai 
KW  - ENVIRONMENTAL STUDIES
ER  -