@misc{indiciae61919bf6afe0,
  title = {Geologic map and digital database of the Yucaipa 7.5’ quadrangle, San Bernardino and Riverside Counties, California},
  author = {Jonathan C. Matti and D. M. Morton and B. F. Cox and S. E. Carson and T. J. Yetter and P. M. Cossette and M. C. Wright and S. A. Kennedy and M. L. Dawson and R. M. Hauser},
  year = {2003},
  doi = {10.3133/ofr03301},
  url = {https://pubs.usgs.gov/publication/ofr03301},
  note = {Source identifier: ofr03301}
}