APA (7e ed.) Bronvermelding

Não informado. Summary of operations, California oil fields. Department of Natural Resources, Division of Oil and Gas.

Chicago (17e ed.) Bronvermelding

Não informado. Summary of Operations, California Oil Fields. San Francisco, Calif: Department of Natural Resources, Division of Oil and Gas.

MLA (8e ed.) Bronvermelding

Não informado. Summary of Operations, California Oil Fields. Department of Natural Resources, Division of Oil and Gas.

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