@misc{indiciae520aaa8b3994,
  title = {Hydrology of the Arapahoe aquifer in the Englewood-Castle Rock area south of Denver, Denver basin, Colorado},
  author = {D. E. Hillier and R. E. Brogden and P. A. Schneider},
  year = {1978},
  doi = {10.3133/i1043},
  url = {https://pubs.usgs.gov/publication/i1043},
  note = {Source identifier: i1043}
}