TY  - GEN
AU  - Ramkrishnan, P. S.
TI  - Ecology and sustainable development
SN  - 9788123736228
U1  - 333.75 
PY  - 2001///
CY  - New Delhi
PB  - National Book Trust
KW  - Eco-system : India
KW  - Eco-systems : Sustainable Development
ER  -