TY  - BOOK
AU  - Wright, Richard T 
AU  - Nebel, Bernard J 
TI  - Environmental science : : towards a sustainable future 
SN  - 9788131723234
U1  - 628 23
PY  - 2008///
CY  - New Delhi
PB  - Prentice hall of india
KW  - Environmental sciences
N1  - includes index
ER  -