@misc{indiciaefae21830eec6,
  title = {Paleocene coal deposits of the Wilcox group, central Texas},
  author = {Robert W. Hook and Peter D. Warwick and John R. SanFilipo and Adam C. Schultz and Douglas J. Nichols and Sharon M. Swanson},
  year = {2011},
  url = {https://pubs.usgs.gov/publication/70192679},
  note = {Source identifier: 70192679}
}