@misc{indiciae8106c930805f,
  title = {The design and use of hydrogeologic maps},
  author = {J.C. Warman and D.R. Wiesnet},
  year = {2006},
  doi = {10.1111/j.1745-6584.1966.tb01589.x},
  url = {https://pubs.usgs.gov/publication/70221267},
  note = {Source identifier: 70221267}
}