@misc{indiciae066f600f0603,
  title = {Cluster analysis of water-quality data for Lake Sakakawea, Audubon Lake, and McClusky Canal, central North Dakota, 1990-2003},
  author = {Karen R. Ryberg},
  year = {2006},
  doi = {10.3133/sir20065202},
  url = {https://pubs.usgs.gov/publication/sir20065202},
  note = {Source identifier: sir20065202}
}