@misc{indiciae6d8713556fae,
  title = {Rocks of eocene age on fippennies ledge, Gulf of Maine},
  author = {J. Schlee and A.H. Cheetham},
  year = {1967},
  doi = {10.1130/0016-7606(1967)78[681:roeaof]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70221361},
  note = {Source identifier: 70221361}
}