@misc{indiciae534be68c14d1,
  title = {Magnetic and gravity study of the Paducah 1° x 2° CUSMAP quadrangle, Illinois, Indiana, Kentucky, and Missouri},
  author = {T.G. Hildenbrand and R.P. Kucks and Paul C. Heigold},
  year = {1996},
  doi = {10.3133/b2150c},
  url = {https://pubs.usgs.gov/publication/b2150C},
  note = {Source identifier: b2150C}
}