California. Dept. of Natural Resources. Division of Mines. Bulletin
State of California
by René Engel . by René Engel, Thomas E. Gay Jr., and B.L. Rogers
State of California, Dept. of Natural Resources, Division of Mines 1959 California. Dept. of Natural Resources. Division of Mines. Bulletin no. 146
所蔵館2館
by A.H. Ricketts
California State Print. Office 1943 4th ed., enl. and rev. to date California. Dept. of Natural Resources. Division of Mines. Bulletin No. 123