TY  - BOOK
AU  - Kumar G.R. Ravindra
AU  -  Subhash N
TI  - Earth system Science and Natural Resoures Management
SN  - 8190184202
U1  - "H..212, P4" 
PY  - 2004///
CY  - Thiruvananthapuram
PB  - Centre for Earth Science Studies   
ER  -