@misc{indiciae200064c2d37f,
  title = {Reconnaissance geologic map of the Petersburg D-5 Quadrangle, southeastern Alaska},
  author = {David A. Brew},
  year = {1997},
  doi = {10.3133/ofr97156m},
  url = {https://pubs.usgs.gov/publication/ofr97156M},
  note = {Source identifier: ofr97156M}
}