APA引文

Prince, A. J., & Squier, R. (2014). Who was Frederick Douglass? Grosset & Dunlap, an imprint of Penguin Group (USA) LLC.

Chicago Style (17th ed.) Citation

Prince, April Jones, and Robert Squier. Who Was Frederick Douglass? New York: Grosset & Dunlap, an imprint of Penguin Group (USA) LLC, 2014.

MLA引文

Prince, April Jones, and Robert Squier. Who Was Frederick Douglass? Grosset & Dunlap, an imprint of Penguin Group (USA) LLC, 2014.

警告：這些引文格式不一定是100％准確.