@misc{indiciaea5450faebfbd,
  title = {Bikini Atoll magnetic field total intensity anomaly contour map},
  author = {L.R. Alldredge},
  year = {1948},
  doi = {10.3133/ofr4822},
  url = {https://pubs.usgs.gov/publication/ofr4822},
  note = {Source identifier: ofr4822}
}