@misc{indiciaeb48597d00476,
  title = {Reconnaissance geologic map of the Petersburg B-1 quadrangle, Southeastern Alaska},
  author = {David A. Brew},
  year = {1997},
  doi = {10.3133/ofr97156c},
  url = {https://pubs.usgs.gov/publication/ofr97156C},
  note = {Source identifier: ofr97156C}
}