@misc{indiciae41ccc1407fe4,
  title = {Geohydrology of the shallow aquifers in the Boulder-Longmont area, Colorado},
  author = {Stanley G. Robson and Janet S. Heiny and L. R. Arnold},
  year = {2000},
  doi = {10.3133/ha746d},
  url = {https://pubs.usgs.gov/publication/ha746D},
  note = {Source identifier: ha746D}
}