TY  - BOOK
AU  - P R Trivedi and K N ed Sudarshan 
AU  - Trivedi, P R    Sudarshan, K N ed 
TI  - Environment and Natural Resources Conservation 
SN  - 8171692296 
U1  - 363.7 
PY  - 1994///
CY  - New Delhi
PB  - Common Wealth
KW  - Environmental Studies
ER  -