APA (7th ed.) Citation

Valentine, M. (2013). The bad birthday idea. Alfred A. Knopf Books for Young Readers.

Chicago Style (17th ed.) Citation

Valentine, Madeline. The Bad Birthday Idea. New York: Alfred A. Knopf Books for Young Readers, 2013.

MLA (8th ed.) Citation

Valentine, Madeline. The Bad Birthday Idea. Alfred A. Knopf Books for Young Readers, 2013.

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