APA (7th ed.) Citation

Jonell, L., & Mathers, P. (1999). It's my birthday, too! Putnam's.

Chicago Style (17th ed.) Citation

Jonell, Lynne, and Petra Mathers. It's My Birthday, Too! New York: Putnam's, 1999.

MLA (9th ed.) Citation

Jonell, Lynne, and Petra Mathers. It's My Birthday, Too! Putnam's, 1999.