TY  - BOOK
AU  - Johnson, Rebecca L.,
AU  - Johnson, Gary V.
TI  - Economic valuation of natural resources: issues, theory, and app lications 
SN  - 0813378389
U1  - 333.7 20
PY  - 1990///
CY  - Boulder
PB  - Westview Press
KW  - Natural resources
KW  - Valuation
KW  - Management
KW  - Recreation
N1  - Includes bibliographical references
ER  -