@misc{indiciaed639f39ea6fd,
  title = {National wildlife refuge visitor survey 2010/2011: Individual refuge results},
  author = {Natalie R. Sexton and Alia M. Dietsch and Andrew W. Don Carlos and Lynne M. Koontz and Adam N. Solomon and Holly M. Miller},
  year = {2012},
  doi = {10.3133/ds643},
  url = {https://pubs.usgs.gov/publication/ds643},
  note = {Source identifier: ds643}
}