@misc{indiciae913bdfeb0c73,
  title = {Glacial pebbles in Eastern Kentucky},
  author = {W. R. Jillson},
  year = {1924},
  doi = {10.1126/science.60.1544.101},
  url = {https://pubs.usgs.gov/publication/70010956},
  note = {Source identifier: 70010956}
}