TY  - BOOK
AU  - Asthana, D. K.
AU  - 
TI  - Environment : problems and solutions: By D. K. Asthana
SN  - 9788121916547
U1  - 301.31 
PY  - 2005///
CY  - New Delhi
PB  - S. Chand
KW  - Environmental sciences
KW  - Nature--Effect of human beings on
KW  - Environmental policy
ER  -