Cita APA (7th ed.)
Barker, R. (2005). Scorched earth: How the fires of Yellowstone changed America. Island Press.
Cita Chicago (17th ed.)
Barker, Rocky. Scorched Earth: How the Fires of Yellowstone Changed America. Washington: Island Press, 2005.
Cita MLA (9th ed.)
Barker, Rocky. Scorched Earth: How the Fires of Yellowstone Changed America. Island Press, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.