@misc{indiciae5aa9452168d9,
  title = {Surficial geology of the Lawrence quadrangle, Massachusetts-New Hampshire},
  author = {Robert O. Castle},
  year = {1958},
  doi = {10.3133/gq107},
  url = {https://pubs.usgs.gov/publication/gq107},
  note = {Source identifier: gq107}
}