@misc{indiciae888a10446625,
  title = {DISTRIBUTION OF TRACE ELEMENTS IN COAL MINERALS OF SELECTED EASTERN UNITED STATES COALS.},
  author = {C.A. Palmer and M.-V. Wandless},
  year = {1985},
  url = {https://pubs.usgs.gov/publication/70013000},
  note = {Source identifier: 70013000}
}