TY  - RPRT
TI  - National Park Service socioeconomic monitoring pilot survey: Visitor spending analysis
AU  - Catherine Cullinane Thomas
AU  - Egan Cornachione
AU  - Lynne Koontz
AU  - Christopher Keyes
PY  - 2019
UR  - https://pubs.usgs.gov/publication/70204070
ID  - 70204070
ER  -