@misc{indiciae588e319adadd,
  title = {Surficial geologic map of the Hampton 7.5-minute quadrangle (east half of the Exeter 7.5 x 15 minute quadrangle), New Hampshire-Massachusetts},
  author = {Carl Koteff and Gregory David Gephart and John Phillip Schafer},
  year = {1989},
  doi = {10.3133/ofr89430},
  url = {https://pubs.usgs.gov/publication/ofr89430},
  note = {Source identifier: ofr89430}
}