@misc{indiciaeaaac5d19bc92,
  title = {Areal geology of the Little Cone quadrangle, Colorado},
  author = {A.L. Bush and O.T. Marsh and R. B. Taylor},
  year = {1960},
  doi = {10.3133/b1082g},
  url = {https://pubs.usgs.gov/publication/b1082G},
  note = {Source identifier: b1082G}
}