@misc{indiciae70ec0be02c1d,
  title = {Geophysical abstracts 141, April-June 1950},
  author = {M.C. Rabbitt and V.L. Skitsky and S.T. Vesselowsky},
  year = {1950},
  doi = {10.3133/b976b},
  url = {https://pubs.usgs.gov/publication/b976B},
  note = {Source identifier: b976B}
}