@misc{indiciae05625b5206c6,
  title = {Reconnaissance geologic map of the Howard Quadrangle, central Colorado},
  author = {R. B. Taylor and G. R. Scott and R. A. Wobus},
  year = {1975},
  doi = {10.3133/i892},
  url = {https://pubs.usgs.gov/publication/i892},
  note = {Source identifier: i892}
}