TY  - BOOK
AU  - Sinden,J.A
AU  - Worrel,Albert Cadwaller
TI  - Unpriced values: decisions without market prices 
SN  - 0471027421
PY  - 1979///
CY  - New York
PB  - John Wiley & Sons
KW  - Values
KW  - Valuation
KW  - Externalities(Economics)
KW  - Environmental policy
KW  - Decision-making
ER  -