TY - RPRT TI - Geologic map of the San Bernardino and Santa Ana 30' x 60' quadrangles, California AU - Douglas M. Morton AU - Fred K. Miller PY - 2006 DO - 10.3133/ofr20061217 UR - https://pubs.usgs.gov/publication/ofr20061217 ID - ofr20061217 ER -