TY  - BOOK
AU  -  Nambiar K. Raghavan
TI  - Textbook of Environmental Studies 
SN  - 978-81-8371-111-1
U1  - 333.7 
PY  - 2008///
CY  -  Hyderabad
PB  - Scitech Publications
KW  - Environment Engineering
ER  -