APA (7th ed.) Citation

Ahlberg, A., & Ingman, B. (2008). The pencil (1st U.S. ed.). Candlewick Press.

Chicago Style (17th ed.) Citation

Ahlberg, Allan, and Bruce Ingman. The Pencil. 1st U.S. ed. Cambridge, Mass.: Candlewick Press, 2008.

MLA (9th ed.) Citation

Ahlberg, Allan, and Bruce Ingman. The Pencil. 1st U.S. ed. Candlewick Press, 2008.