TY  - GEN
AU  - Ramakrishnan,P.S
TI  - Ecology and sustainable development
SN  - 8123736223
AV  - QH 540 RAM 2001 
PY  - 2001///
CY  - New Delhi
PB  - National Book Trust
KW  - Ecology
N1  - Includes chapter-specific references
ER  -