@misc{indiciaeda2f46b1ee03,
  title = {Geochemical and mineralogical sampling of the Devonian shales in the Broadtop synclinorium, Appalachian basin, in Virginia, West Virginia, Maryland, and Pennsylvania},
  author = {Catherine B. Enomoto and James L. Coleman and Christopher S. Swezey and Patrick W. Niemeyer and Frank T. Dulong},
  year = {2015},
  doi = {10.3133/ofr20151061},
  url = {https://pubs.usgs.gov/publication/ofr20151061},
  note = {Source identifier: ofr20151061}
}