@misc{indiciae08e6183ee984, title = {Preliminary geologic map of the Point Dume quadrangle, Los Angeles County, California}, author = {R. H. Campbell and B.H. Blackerby and R. F. Yerkes and J. E. Schoellhamer and P. W. Birkeland and C. M. Wentworth}, year = {1970}, doi = {10.3133/ofr7053}, url = {https://pubs.usgs.gov/publication/ofr7053}, note = {Source identifier: ofr7053} }