Tohutoro APA (7th ed.)
ebrary, Inc, & Beltran, A. (2010). A comparative history of national oil companies. P.I.E. Peter Lang.
Tohutoru Kātū Chicago (17th ed.)
ebrary, Inc, me Alain Beltran. A Comparative History of National Oil Companies. Bruxelles ; New York: P.I.E. Peter Lang, 2010.
Tohutoro MLA (9th ed.)
ebrary, Inc, me Alain Beltran. A Comparative History of National Oil Companies. P.I.E. Peter Lang, 2010.
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