@misc{indiciaee8700c386fa5,
  title = {GEOLOGIC PROCESSES AFFECTING THE QUALITY OF THE UPPER FREEPORT COAL BED, WEST-CENTRAL PENNSYLVANIA.},
  author = {R.W. Stanton and C. B. Cecil and B.S. Pierce and L.F. Ruppert and F.T. Dulong},
  year = {1985},
  url = {https://pubs.usgs.gov/publication/70013100},
  note = {Source identifier: 70013100}
}