@misc{indiciae68238a360f14,
  title = {Aeromagnetic map of the Adna quadrangle, Lewis County, Washington},
  author = {John R. Henderson and Natalie S. Tyson and E.F. McGowan},
  year = {1958},
  doi = {10.3133/gp187},
  url = {https://pubs.usgs.gov/publication/gp187},
  note = {Source identifier: gp187}
}