TY  - BOOK
AU  - K Saravanan, S. Ramachandran, R.Basker.
TI  - Principles of Environmental Science and Technology
SN  - 9788122415841
U1  - 333.7 Sa717 P 
PY  - 2005///
CY  - New  Delhi 
PB  - New Age International Publishers 
ER  -