APA (7e ed.) Bronvermelding

Marriott, E. (2012). I used to know that world history: Intriguing facts about the world's greatest empires, leaders, cultures, and conflicts. A Reader's Digest Book.

Chicago (17e ed.) Bronvermelding

Marriott, Emma. I Used to Know That World History: Intriguing Facts About the World's Greatest Empires, Leaders, Cultures, and Conflicts. New York: A Reader's Digest Book, 2012.

MLA (9e ed.) Bronvermelding

Marriott, Emma. I Used to Know That World History: Intriguing Facts About the World's Greatest Empires, Leaders, Cultures, and Conflicts. A Reader's Digest Book, 2012.