@misc{indiciae1bdc010141ea,
  title = {A review of selected laws and governmental programs in Colorado as related to mineral resource management and surface mining},
  author = {Edgar A. Imhoff},
  year = {1976},
  doi = {10.3133/ofr76649},
  url = {https://pubs.usgs.gov/publication/ofr76649},
  note = {Source identifier: ofr76649}
}