@misc{indiciae934f3c8cc87d,
  title = {National wildlife refuge visitor survey 2012--Individual refuge results},
  author = {Alia M. Dietsch and Natalie R. Sexton and Lynne M. Koontz and Shannon J. Conk},
  year = {2013},
  doi = {10.3133/ds754},
  url = {https://pubs.usgs.gov/publication/ds754},
  note = {Source identifier: ds754}
}