APA (7th ed.) Zitazioa
Hilyard, J. (2012). The oil & gas Industry: A nontechnical guide. PennWell.
Chicago Style (17th ed.) Zitazioa
Hilyard, Joseph. The Oil & Gas Industry: A Nontechnical Guide. Tulsa, Okla.: PennWell, 2012.
MLA (9th ed.) Zitazioa
Hilyard, Joseph. The Oil & Gas Industry: A Nontechnical Guide. PennWell, 2012.
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