TY  - BOOK
AU  - Johansson,Per-Olov  .
TI  - The economic theory and measurement of environmental benefits / 
SN  - 0521348102
U1  - 333.71 
PY  - 1987///
CY  - Cambridge : 
PB  - Cambridge University Press , 
KW  - CONSUMERS SURPLUS
N1  - Includes index and bibliographical references
ER  -