Hoover, J. (2007). Difficult People. HarperCollins.
Cita Chicago Style (17a ed.)Hoover, John. Difficult People. New York: HarperCollins, 2007.
Cita MLA (9a ed.)Hoover, John. Difficult People. HarperCollins, 2007.
Precaución: Estas citas no son 100% exactas.