TY  - RPRT
TI  - Two valuation questions in one survey: Is it a recipe for sequencing and instrument context effects?
AU  - K.L. Giraud
AU  - J.B. Loomis
AU  - Richard L. Johnson
PY  - 1999
DO  - 10.1080/000368499323670
UR  - https://pubs.usgs.gov/publication/70021988
ID  - 70021988
ER  -