Gaya APA

Petrie, T, A. (2014). Following Oil: Four Decades of Cycle-Testing Experiences and What They Foretell about U.S. Energy Independence . United States: University of Oklahoma Press.

Gaya MLA

Petrie, Thomas, A.. "Following Oil: Four Decades of Cycle-Testing Experiences and What They Foretell about U.S. Energy Independence". United States: University of Oklahoma Press, 2014. Text.