@misc{indiciae45c33df2a63b,
  title = {Maps showing ground-water conditions in the Bill Williams area, Mohave, Yavapai, and Yuma Counties, Arizona - 1980},
  author = {H. W. Sanger and G. R. Littin},
  year = {1982},
  doi = {10.3133/ofr8287},
  url = {https://pubs.usgs.gov/publication/ofr8287},
  note = {Source identifier: ofr8287}
}