TY  - GEN
AU  - Sharma , V.K.
TI  - Trees and environment
SN  - 8170249651
U1  - 333.7 
PY  - 1998///
CY  - New Delhi
PB  - A.P.H. Publishing Corporation
KW  - ECONOMICS
KW  - NATURAL RESOURCES
KW  - ENVIRONMENT
ER  -