@misc{indiciaed6b8ed7c39be,
  title = {Underground waters of southern Maine, with records of deep wells},
  author = {Frederick Gardner Clapp and William Shirley Bayley},
  year = {1909},
  doi = {10.3133/wsp223},
  url = {https://pubs.usgs.gov/publication/wsp223},
  note = {Source identifier: wsp223}
}