@misc{indiciae2b9ad1b74c26,
  title = {Eighteenth annual report of the United States Geological Survey to the Secretary of the Interior, 1896-1897: Part V - Mineral resources of the United States, 1896, nonmetallic products, except coal},
  author = {Edward Wheeler Parker and F.H. Oliphant and Jefferson Middleton and William C. Day and Heinrich Ries and T.C. Hopkins and C.E. Siebenthal and T.W. Vaughan and Spencer Newberry and George F. Kunz and Albert C. Peale},
  year = {1897},
  doi = {10.3133/ar18\_5continued},
  url = {https://pubs.usgs.gov/publication/ar18\_5continued},
  note = {Source identifier: ar18\_5continued}
}