Não informado. (1908). California oil world. Petroleum Publishers.
Style de citation Chicago (17e éd.)Não informado. California Oil World. Bakersfielf, Calif: Petroleum Publishers, 1908.
Style de citation MLA (8e éd.)Não informado. California Oil World. Petroleum Publishers, 1908.
Attention : ces citations peuvent ne pas être correctes à 100%.