TY  - GEN
AU  - Trivedi , P. R.
TI  - Encyclopaedia of environment, pollution, planning and conservation
SN  - 8176480002
U1  - 333.703 
PY  - 1998///
CY  - New Delhi
PB  - A.P.H.
KW  - Natural resources
KW  - Natural resources - Encyclopaedias
KW  -  Environment - Encyclopaedias
ER  -