TY  - BOOK
AU  - Asthana, D. K.; Asthana, Meera
TI  - Environment: problems and solutions
SN  - 9788121916547
U1  - 303.31 AST 
PY  - 2013///
CY  - New Delhi
PB  - S. Chand & Company LTD
KW  - Social Sciences
N1  - Includes Index
ER  -