@misc{indiciaeead82b8ec0cd,
  title = {Minor and trace elements in coal: a selected bibliography of reports in English, January 1976},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1976},
  doi = {10.3133/ofr76481},
  url = {https://pubs.usgs.gov/publication/ofr76481},
  note = {Source identifier: ofr76481}
}