@misc{indiciaed8903f8f682c,
  title = {Analytical results and sample locality map for stream-sediment, panned-concentrate, and rock samples collected in 1988 in and near the Ragged Top Wilderness Study Area (AZ-020-197), Pima County, Arizona},
  author = {J. H. Bullock and G.A. Nowlan and D.A. Sawyer and J. B. McHugh and D.L. Fey},
  year = {1989},
  doi = {10.3133/ofr89473},
  url = {https://pubs.usgs.gov/publication/ofr89473},
  note = {Source identifier: ofr89473}
}