@misc{indiciae656974f97538,
  title = {Engineering characteristics of overburden in Knox County, Tennessee},
  author = {Larry D. Harris and J. M. Kellberg},
  year = {1972},
  doi = {10.3133/i767k},
  url = {https://pubs.usgs.gov/publication/i767K},
  note = {Source identifier: i767K}
}