@misc{indiciaee4f5be53b9ef,
  title = {Utilization of surface coal mine wastewater for construction of a northern pike spawning/rearing marsh},
  author = {Richard W. Gregory and Allen A. Elser and Thomas Lenhart},
  year = {1984},
  url = {https://pubs.usgs.gov/publication/fwsobs84\_03},
  note = {Source identifier: fwsobs84\_03}
}