Não informado. (2004). Hydrocarbon News. Petroleum Engineer Publishing.
Style de citation Chicago (17e éd.)Não informado. Hydrocarbon News. Dallas, Tex: Petroleum Engineer Publishing, 2004.
Style de citation MLA (8e éd.)Não informado. Hydrocarbon News. Petroleum Engineer Publishing, 2004.
Attention : ces citations peuvent ne pas être correctes à 100%.