@misc{indiciaec53a2fad4767,
  title = {Chemical analysis and evaluation of 22 coal samples from the Otter Creek Wilderness and adjacent areas, Randolph and Tucker counties, West Virginia},
  author = {Ralph C. Warlow and Charles L. Oman and Anne E. Brookes},
  year = {1981},
  doi = {10.3133/ofr81351},
  url = {https://pubs.usgs.gov/publication/ofr81351},
  note = {Source identifier: ofr81351}
}