@misc{indiciaef66bf5fe62c9,
  title = {Geologic interpretation of seismic data, alteration of Route 1, at Topsfield Cut, Stations 163-171},
  author = {James E. Maynard and Daniel Linehan},
  year = {1949},
  doi = {10.3133/ofr4939a},
  url = {https://pubs.usgs.gov/publication/ofr4939A},
  note = {Source identifier: ofr4939A}
}