TY - RPRT TI - Preliminary geologic map of the Point Dume quadrangle, Los Angeles County, California AU - R. H. Campbell AU - B.H. Blackerby AU - R. F. Yerkes AU - J. E. Schoellhamer AU - P. W. Birkeland AU - C. M. Wentworth PY - 1970 DO - 10.3133/ofr7053 UR - https://pubs.usgs.gov/publication/ofr7053 ID - ofr7053 ER -