TY  - BOOK
AU  - Campbell Bruce M Ed.
AU  -  Luckert Martin K Ed.
TI  - Uncovering the hidden harvest :  Valuation methods   
T2  - People and Plants conservation
U1  - X9(JB), P2 
PY  - 2002///
CY  - London
PB  - Earthscan Publishers United Kingdom       
KW  - Forestry Industry
N1  - Bibliography p.241-53
ER  -