@misc{indiciae7674e20d7a15,
  title = {Vitrinite reflectance and illite crystallinity, Franciscan central belt and Yolla Bolly terrane, northern California},
  author = {M.B. Underwood and R.H. Strong and M.C. Blake},
  year = {1988},
  doi = {10.3133/ofr88294},
  url = {https://pubs.usgs.gov/publication/ofr88294},
  note = {Source identifier: ofr88294}
}