@misc{indiciaeab877a168ace,
  title = {The occurrence of copper in Shasta County, California; Geology of the copper districts near Montpelier, Bear Lake County Idaho; The copper deposits of South Mountain in southern Pennsylvania; Survey publications of copper},
  author = {L. C. Graton and Hoyt S. Gale and George W. Stose},
  year = {1910},
  doi = {10.3133/b430b},
  url = {https://pubs.usgs.gov/publication/b430B},
  note = {Source identifier: b430B}
}