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Geology of Southern California: Historical geology

GEO Geology of Southern California: Historical geology. DMG, 1954.
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Pre-Cambrian animals

GEO Glaessner, Martin F. HIST Pre-Cambrian animals. W. H. Freeman, 1961
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The Burgess Shale

GEO Lessem, Don HIST The Burgess Shale. Smithsonian, Jan. 1993
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Resource investigation of low- and moderate-temperature geothermal areas in Paso Robles

GEO Campion, L. F. CA Resource investigation of low- and moderate-temperature geothermal areas in Paso Robles,
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