@misc{indiciae5eed63ced62f,
  title = {Coal geology, resources and coal-bed methane potential for the U.S. Gulf Coastal Plain},
  author = {Peter D. Warwick and John R. SanFilipo and Jason C. Willett and Steven M. Podwysocki},
  year = {2000},
  url = {https://pubs.usgs.gov/publication/70195478},
  note = {Source identifier: 70195478}
}