@misc{indiciaec944d3f66c0e,
  title = {An evaluation of sand and gravel resources in and near the Prescott National Forest in the Verde Valley, Arizona, with a section on evaluation of sand and gravel resources using selected engineering variables},
  author = {Leslie J. Cox and James D. Bliss and Robert J. Miller},
  year = {1999},
  doi = {10.3133/ofr99127},
  url = {https://pubs.usgs.gov/publication/ofr99127},
  note = {Source identifier: ofr99127}
}