APA (7e ed.) Bronvermelding

Não informado. (1971). California Geology. California Division of Mines and Geology.

Chicago (17e ed.) Bronvermelding

Não informado. California Geology. Sacramento, Calif: California Division of Mines and Geology, 1971.

MLA (8e ed.) Bronvermelding

Não informado. California Geology. California Division of Mines and Geology, 1971.

Let op: Deze citaties zijn niet altijd 100% accuraat.