Shaffer, B. (2009). Energy politics. University of Pennsylvania Press.
Chicago Style (17th ed.) CitationShaffer, Brenda. Energy Politics. Philadelphia: University of Pennsylvania Press, 2009.
MLA (9th ed.) CitationShaffer, Brenda. Energy Politics. University of Pennsylvania Press, 2009.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.