@misc{indiciae12f60efb542c,
  title = {Preliminary geologic map of the northeastern part of the Tanana quadrangle, Alaska},
  author = {Robert M. Chapman and Warren Yeend},
  year = {1972},
  doi = {10.3133/mf342},
  url = {https://pubs.usgs.gov/publication/mf342},
  note = {Source identifier: mf342}
}