APA (7th ed.) Zitazioa

Frehner, B. (2011). Finding oil: The nature of petroleum geology, 1859-1920. University of Nebraska Press.

Chicago Style (17th ed.) Zitazioa

Frehner, Brian. Finding Oil: The Nature of Petroleum Geology, 1859-1920. Lincoln: University of Nebraska Press, 2011.

MLA (9th ed.) Zitazioa

Frehner, Brian. Finding Oil: The Nature of Petroleum Geology, 1859-1920. University of Nebraska Press, 2011.