TY  - BOOK
AU  - Trivedi, P. R.
AU  - Sudarshan, K. N.
TI  - Environment and natural resources conservation
SN  - 81-7169-279-6
U1  - 333.72 
PY  - 1994///
CY  - New Delhi
PB  - Commonwealth
KW  - Environment
KW  - Economics
ER  -