@misc{indiciae193bac88a09c,
  title = {U-Pb isotope systematics and age of uranium mineralization, Midnite mine, Washington.},
  author = {K.R. Ludwig and J. T. Nash and C. W. Naeser},
  year = {1981},
  doi = {10.2113/gsecongeo.76.1.89},
  url = {https://pubs.usgs.gov/publication/70011757},
  note = {Source identifier: 70011757}
}