@misc{indiciae7d04eff1f9ae,
  title = {Alluvial and bedrock aquifers of the Denver Basin — Eastern Colorado's dual ground-water resource},
  author = {Stanley G. Robson},
  year = {1989},
  doi = {10.3133/wsp2302},
  url = {https://pubs.usgs.gov/publication/wsp2302},
  note = {Source identifier: wsp2302}
}