01025cam a22002771 4500 gs 63000191 DLC 20260227111412.0 760826s1961 cauab b s000 0 eng c gs 63000191 (OCoLC)2398684 U.S. Geol.Survey. Libr. LNU DLC premarc TN24.C2 A33 no. 68 Rogers, John J. W. (John James William), 1930- Igneous and metamorphic rocks of the western portion of Joshua Tree National Monument, Riverside and San Bernardino Counties, California. San Francisco, 1961. 26 p. illus., maps (1 fold. in pocket) 28 cm. California. Division of Mines. Special report 68 Bibliography: p. 26. Petrology California Joshua Tree National Monument. Crystalline rocks. Metamorphic rocks. Igneous rocks. California. Division of Mines and Geology. Special report ; 68. 29698 29698