@misc{indiciaebfffea8128a6,
  title = {Geologic map of the Valjean Hills 7.5' quadrangle, San Bernardino County, California},
  author = {J.P. Calzia and Bennie W. Troxel and Christian G. Raumann},
  year = {2003},
  doi = {10.3133/ofr0396},
  url = {https://pubs.usgs.gov/publication/ofr0396},
  note = {Source identifier: ofr0396}
}