Halperin, M., Heilemann, J., & Fass, R. (2013). Double down: Game change 2012 (Unabridged.). Penguin Group USA.
Cita Chicago Style (17a ed.)Halperin, Mark, John Heilemann, y Robert Fass. Double Down: Game Change 2012. Unabridged. [New York]: Penguin Group USA, 2013.
Cita MLA (8a ed.)Halperin, Mark, et al. Double Down: Game Change 2012. Unabridged. Penguin Group USA, 2013.
Precaución: Estas citas no son 100% exactas.