@misc{indiciaed88f550be221, title = {Maps of California continental borderland showing compositions and ages of bottom samples acquired between 1968 and 1979}, author = {J. G. Vedder}, year = {1990}, doi = {10.3133/mf2122}, url = {https://pubs.usgs.gov/publication/mf2122}, note = {Source identifier: mf2122} }