APA (7th ed.) Citation

Doyle, M., & Hillenbrand, W. (2004). One, two, three O'Leary ([1st ed.].). Margaret K. McElderry Books.

Chicago Style (17th ed.) Citation

Doyle, Malachy, and Will Hillenbrand. One, Two, Three O'Leary. [1st ed.]. New York: Margaret K. McElderry Books, 2004.

MLA (9th ed.) Citation

Doyle, Malachy, and Will Hillenbrand. One, Two, Three O'Leary. [1st ed.]. Margaret K. McElderry Books, 2004.