APA Citation

Bader, B., & Harrison, N. (2013). Who was Christopher Columbus? New York: Grosset & Dunlap ; An Imprint of Penguin Group (USA) Inc..

Chicago Style Citation

Bader, Bonnie, and Nancy Harrison. Who Was Christopher Columbus? New York: Grosset & Dunlap ; An Imprint of Penguin Group (USA) Inc., 2013.

MLA Citation

Bader, Bonnie, and Nancy Harrison. Who Was Christopher Columbus? New York: Grosset & Dunlap ; An Imprint of Penguin Group (USA) Inc., 2013.

Warning: These citations may not always be 100% accurate.