APA (7th ed.) Citation

Francis, G. (2018). Knock knock. Scholastic Press.

Chicago Style (17th ed.) Citation

Francis, Guy. Knock Knock. New York: Scholastic Press, 2018.

MLA (9th ed.) Citation

Francis, Guy. Knock Knock. Scholastic Press, 2018.

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