TY  - RPRT
TI  - Convergent validity between willingness to pay elicitation methods: An application to Grand Canyon whitewater boaters
AU  - Christopher Neher
AU  - Lucas S. Bair
AU  - John Duffield
AU  - David A. Patterson
AU  - Katherine Neher
PY  - 2018
DO  - 10.1080/09640568.2018.1435411
UR  - https://pubs.usgs.gov/publication/70196384
ID  - 70196384
ER  -