@misc{indiciae43af8eabc215,
  title = {The crustal structure of the axis of the Great Valley, California, from seismic refraction measurements},
  author = {W.S. Holbrook and Walter D. Mooney},
  year = {1987},
  doi = {10.1016/0040-1951(87)90139-9},
  url = {https://pubs.usgs.gov/publication/70014121},
  note = {Source identifier: 70014121}
}