@misc{indiciaecacf8b90efe1,
  title = {Mineral resources of the Needles Eye Wilderness Study Area, Gila County, Arizona},
  author = {Frank S. Simons and P. K. Theobald and R.R. Tidball and J. A. Erdman and T. F. Harms and Andrew Griscom and G. S. Ryan},
  year = {1987},
  doi = {10.3133/b1703b},
  url = {https://pubs.usgs.gov/publication/b1703B},
  note = {Source identifier: b1703B}
}