@misc{indiciae00f1d34df299,
  title = {Aerial gamma-ray maps of regional surface concentrations of potassium, uranium, and thorium in West Virginia},
  author = {K. R. Bond and J. S. Duval},
  year = {1995},
  doi = {10.3133/i2364i},
  url = {https://pubs.usgs.gov/publication/i2364I},
  note = {Source identifier: i2364I}
}