Não informado. (1971). California Geology. California Division of Mines and Geology.
Chicagoスタイル(17版)引用形式Não informado. California Geology. Sacramento, Calif: California Division of Mines and Geology, 1971.
MLA(8版)引用形式Não informado. California Geology. California Division of Mines and Geology, 1971.
警告: この引用は必ずしも正確ではありません.