@misc{indiciae98949ae59ca2,
  title = {Surficial geologic map of the Salem Depot-Newburyport East-Wilmington-Rockport 16-quadrangle area in northeast Massachusetts},
  author = {Byron D. Stone and Janet Radway Stone and Mary L. DiGiacomo-Cohen},
  year = {2006},
  doi = {10.3133/ofr20061260b},
  url = {https://pubs.usgs.gov/publication/ofr20061260B},
  note = {Source identifier: ofr20061260B}
}