@misc{indiciae014c46df06e7,
  title = {Preliminary map of surficial materials of the Worcester North Quadrangle, Massachusetts},
  author = {Byron D. Stone},
  year = {1977},
  doi = {10.3133/ofr77126},
  url = {https://pubs.usgs.gov/publication/ofr77126},
  note = {Source identifier: ofr77126}
}