TY  - BOOK
AU  - Sherman Paul B
AU  -  Dixon John A
TI  - Economics of protected areas:  A new look at benefits and costs   
SN  - 1853830976
U1  - X0aNB,6, N0 
PY  - 1990///
CY  - London
PB  - Earthscan Publications         
KW  - Economics irt Town Planning
N1  - Bibliography: P 213-21
ER  -