@misc{indiciae1e7ebbce9486,
  title = {Mode of intrusion of pre‐Cambrian granites in Central Boulder County, Colorado},
  author = {Edwin N. Goddard},
  year = {2014},
  doi = {10.1029/tr017i001p00257-2},
  url = {https://pubs.usgs.gov/publication/70212979},
  note = {Source identifier: 70212979}
}