TY  - RPRT
TI  - 2018 National Park visitor spending effects: Economic contributions to local communities, states, and the nation
AU  - Catherine Cullinane Thomas
AU  - Lynne Koontz
AU  - Egan Cornachione
PY  - 2019
UR  - https://pubs.usgs.gov/publication/70204071
ID  - 70204071
ER  -