@misc{indiciaed7d1a34f8fbf,
  title = {Aeromagnetic map of the southern part of the Knoxville quadrangle, North Carolina, South Carolina, and Tennessee.},
  author = {F. A. Petrafeso and C. L. Long},
  year = {1966},
  doi = {10.3133/ofr66140},
  url = {https://pubs.usgs.gov/publication/ofr66140},
  note = {Source identifier: ofr66140}
}