@misc{indiciae2510e4266fb0,
  title = {Cylindrical jointing in mafic dikes, central Beartooth Mountains, Montana},
  author = {Theodore J. Armbrustmacher and Frank S. Simons},
  year = {1975},
  url = {https://pubs.usgs.gov/publication/70164430},
  note = {Source identifier: 70164430}
}