Não informado. Summary of operations, California oil fields. Department of Natural Resources, Division of Oil and Gas.
Chicagoスタイル(17版)引用形式Não informado. Summary of Operations, California Oil Fields. San Francisco, Calif: Department of Natural Resources, Division of Oil and Gas.
MLA(8版)引用形式Não informado. Summary of Operations, California Oil Fields. Department of Natural Resources, Division of Oil and Gas.
警告: この引用は必ずしも正確ではありません.