@misc{indiciae02dd92fa5a00,
  title = {2014 National Park visitor spending effects: economic contributions to local communities, states, and the nation},
  author = {Catherine Cullinane Thomas and Christopher Huber and Lynne Koontz},
  year = {2015},
  url = {https://pubs.usgs.gov/publication/70148496},
  note = {Source identifier: 70148496}
}