@misc{indiciaed68490680e06,
  title = {PYROLYSIS/GAS CHROMATOGRAPHY/MASS SPECTROMETRY OF A SERIES OF BURIED WOODS AND COALIFIED LOGS THAT INCREASE IN RANK FROM PEAT TO SUBBITUMINOUS COAL.},
  author = {Patrick G. Hatcher and Harry E. Lerch and Rama K. Kotra and Vincent T. Verheyen},
  year = {1987},
  url = {https://pubs.usgs.gov/publication/70015209},
  note = {Source identifier: 70015209}
}