@misc{indiciaed6bec557ab77,
  title = {The Whitehorn granodiorite of the Arkansas Valley in central Colorado},
  author = {Chester T. Wrucke},
  year = {1974},
  doi = {10.3133/b1394h},
  url = {https://pubs.usgs.gov/publication/b1394H},
  note = {Source identifier: b1394H}
}