@misc{indiciae8606abdfa529,
  title = {South Dakota mica deposits},
  author = {J.J. Norton and L.C. Pray and Peter Joralemon and Robert Stopper and L. R. Page and J.W. Adams},
  year = {1944},
  doi = {10.3133/ofr4472},
  url = {https://pubs.usgs.gov/publication/ofr4472},
  note = {Source identifier: ofr4472}
}