@misc{indiciae16a3a6b67091,
  title = {Influences of strip mining on the hydrologic environment of parts of Beaver Creek basin, Kentucky, 1955-66},
  year = {1970},
  doi = {10.3133/pp427c},
  url = {https://pubs.usgs.gov/publication/pp427C},
  note = {Source identifier: pp427C}
}