Não informado. (1971). California Geology. California Division of Mines and Geology.
Style de citation Chicago (17e éd.)Não informado. California Geology. Sacramento, Calif: California Division of Mines and Geology, 1971.
Style de citation MLA (8e éd.)Não informado. California Geology. California Division of Mines and Geology, 1971.
Attention : ces citations peuvent ne pas être correctes à 100%.