@misc{indiciae5829b30b7c05,
  title = {Geologic interpretation of seismic data, alteration of Route 1, at Topsfield Cut, Stations 74-80},
  author = {James E. Maynard and Daniel Linehan},
  year = {1949},
  doi = {10.3133/ofr4939b},
  url = {https://pubs.usgs.gov/publication/ofr4939B},
  note = {Source identifier: ofr4939B}
}