TY  - RPRT
TI  - Empirical evidence for large nonmarket values for water resources: TCM benefits estimates for Lake Powell
AU  - Aaron J. Douglas
AU  - Richard L. Johnson
PY  - 2004
DO  - 10.1504/ijw.2004.005524
UR  - https://pubs.usgs.gov/publication/1015184
ID  - 1015184
ER  -