APA (7th ed.) Citation

Andreasen, D. (2011). The happy elf. Harper.

Chicago Style (17th ed.) Citation

Andreasen, Dan. The Happy Elf. New York: Harper, 2011.

MLA (9th ed.) Citation

Andreasen, Dan. The Happy Elf. Harper, 2011.

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