@misc{indiciae2fee8bc96f61,
  title = {Ground-water field trip, Tucson to Nogales, Arizona},
  author = {D.R. Coates and L.C. Halpenny},
  year = {1954},
  doi = {10.3133/ofr5452},
  url = {https://pubs.usgs.gov/publication/ofr5452},
  note = {Source identifier: ofr5452}
}