@misc{indiciae88af2b1bdfdc,
  title = {Influences of strip mining on the hydrologic environment of parts of Beaver Creek basin, Kentucky, 1955-59},
  author = {C. R. Collier},
  year = {1964},
  doi = {10.3133/pp427b},
  url = {https://pubs.usgs.gov/publication/pp427B},
  note = {Source identifier: pp427B}
}