@misc{indiciae218ce3eadd26,
  title = {Estimating annual suspended-sediment loads in the northern and central Appalachian Coal region},
  author = {G. F. Koltun},
  year = {1985},
  doi = {10.3133/wri854215},
  url = {https://pubs.usgs.gov/publication/wri854215},
  note = {Source identifier: wri854215}
}