@misc{indiciaea21b92aca377,
  title = {Extract ability of humic acid from coalified logs as a guide to temperatures in colorado plateau sediments},
  author = {Irving A. Breger and J.C. Chandler},
  year = {1960},
  doi = {10.2113/gsecongeo.55.5.1039},
  url = {https://pubs.usgs.gov/publication/70220522},
  note = {Source identifier: 70220522}
}