@misc{indiciae063ce6364bf5,
  title = {Metamorphosed middle Paleozoic fossils from Central Massachusetts, eastern Vermont, and western New Hampshire},
  author = {A. J. Boucot and G.J.F. Macdonald and C. Milton and James B. Thompson},
  year = {1958},
  doi = {10.1130/0016-7606(1958)69[855:mmpffc]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70207433},
  note = {Source identifier: 70207433}
}