@misc{indiciae2252c4259742,
  title = {Geologic map and cross-sections of the Cordova and Middleton Island quadrangles, southern Alaska},
  author = {Gary R. Winkler and George Plafker},
  year = {1981},
  doi = {10.3133/ofr811164},
  url = {https://pubs.usgs.gov/publication/ofr811164},
  note = {Source identifier: ofr811164}
}