@misc{indiciaee31fd7f2c577,
  title = {Analytical results and sample locality map for stream-sediment, panned-concentrate, and rock samples from the Ragged Top Wilderness Study Area, Pima County, Arizona},
  author = {John B. McHugh and G.A. Nowlan and D.A. Sawyer and J. H. Bullock},
  year = {1988},
  doi = {10.3133/ofr88587},
  url = {https://pubs.usgs.gov/publication/ofr88587},
  note = {Source identifier: ofr88587}
}