@misc{indiciaef80f41fd7d0d,
  title = {Trace-metal concentrations, waters from selected sky lakes, streams and springs, northern Shawangunk Mountains, New York: geologic and ecologic implications},
  author = {J. D. Friedman and P.C. Huth and D. Smiley},
  year = {1990},
  url = {https://pubs.usgs.gov/publication/70015865},
  note = {Source identifier: 70015865}
}