@misc{indiciae25695b32565a,
  title = {A reconnaissance geochemical survey of the Allegheny Front and Hickory Creek Roadless Areas, Allegheny National Forest, Warren County, Pennsylvania},
  author = {N. L. Hickling and Stanley P. Schweinfurth and Betty M. Adrian},
  year = {1983},
  doi = {10.3133/ofr835},
  url = {https://pubs.usgs.gov/publication/ofr835},
  note = {Source identifier: ofr835}
}