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California. Division of Mines and Geology.

Geology and mineral resources of Santa Ysabel quadrangle, San Diego County, California
Geology and mineral resources of Santa Ysabel quadrangle, San Diego County, California
California. Division of Mines and Geology.
Aggregates in the greater Los Angeles area, California
Aggregates in the greater Los Angeles area, California
California. Division of Mines and Geology.
California mineral production for 1915
California mineral production for 1915
California. Division of Mines and Geology.
Minerals useful to California agriculture
Minerals useful to California agriculture
California. Division of Mines and Geology.