Prince, A. J., & Squier, R. (2014). Who was Frederick Douglass? Grosset & Dunlap, an imprint of Penguin Group (USA) LLC.
Cita Chicago Style (17a ed.)Prince, April Jones, y Robert Squier. Who Was Frederick Douglass? New York: Grosset & Dunlap, an imprint of Penguin Group (USA) LLC, 2014.
Cita MLA (8a ed.)Prince, April Jones, y Robert Squier. Who Was Frederick Douglass? Grosset & Dunlap, an imprint of Penguin Group (USA) LLC, 2014.
Precaución: Estas citas no son 100% exactas.