@misc{indiciaeec6117547a02,
  title = {Bathymetric maps of the Gulf of California},
  author = {J. L. Bischoff and J. W. Niemitz},
  year = {1980},
  doi = {10.3133/i1244},
  url = {https://pubs.usgs.gov/publication/i1244},
  note = {Source identifier: i1244}
}