@misc{indiciae6a8af5305ac3,
  title = {Effects on water quality of coal mining in the basin of the North Fork Kentucky River, eastern Kentucky},
  author = {Kenneth L. Dyer},
  year = {1981},
  doi = {10.3133/ofr81215},
  url = {https://pubs.usgs.gov/publication/ofr81215},
  note = {Source identifier: ofr81215}
}