@misc{indiciaeec7d0027612f,
  title = {Gravity map of the Pueblo 1° x 2° quadrangle, Colorado},
  author = {D. L. Peterson and M. D. Kleinkopf and D. M. Wilson},
  year = {1974},
  doi = {10.3133/ofr74146},
  url = {https://pubs.usgs.gov/publication/ofr74146},
  note = {Source identifier: ofr74146}
}