@misc{indiciaeeea9d42b7fc5,
  title = {Preliminary geologic map of West Granville Quadrangle, Hampden County, Massachusetts, and Hartford County, Connecticut},
  author = {R. W. Schnabel},
  year = {1973},
  doi = {10.3133/ofr73251},
  url = {https://pubs.usgs.gov/publication/ofr73251},
  note = {Source identifier: ofr73251}
}