@misc{indiciaee0da31ad5bec,
  title = {Report on seismic survey at Ordnance Test Station, Maynard, Massachusetts},
  author = {David F. Barnes},
  year = {1956},
  doi = {10.3133/ofr564},
  url = {https://pubs.usgs.gov/publication/ofr564},
  note = {Source identifier: ofr564}
}