TY  - BOOK
AU  - Wright, Richard
AU  - Nebel,Bernard J
TI  - Environmental Science/8e: toward a sustainable future 
SN  - 9788120321571
U1  - 577.068 
PY  - 2004///
CY  - New Delhi
PB  - PHI
KW  - The human population
KW  - Energy
KW  - Pollution and prevention
KW  - Toward a sustainable future
KW  - Ecosystems and how they work
ER  -