@misc{indiciae3a5550566dde,
  title = {Transcontinental geophysical survey (35-39 N.) gravity and bathymetric map from the coast of California to 133 W. longitude},
  author = {R. K. Lattimore and S.A. Bush and P.A. Bush},
  year = {1968},
  doi = {10.3133/i531b},
  url = {https://pubs.usgs.gov/publication/i531B},
  note = {Source identifier: i531B}
}