@misc{indiciae77d9ff38d076,
  title = {Geologic map of parts of the Masontown and Morgantown North quadrangles, Greene County, Pennsylvania},
  author = {B.H. Kent},
  year = {1973},
  doi = {10.3133/i743},
  url = {https://pubs.usgs.gov/publication/i743},
  note = {Source identifier: i743}
}