APA (7th ed.) Citation

Baum, L. F., & Denslow, W. W. (2006). The wonderful wizard of Oz. Signet Classics.

Chicago Style (17th ed.) Citation

Baum, L. Frank, and W. W. Denslow. The Wonderful Wizard of Oz. New York: Signet Classics, 2006.

MLA (9th ed.) Citation

Baum, L. Frank, and W. W. Denslow. The Wonderful Wizard of Oz. Signet Classics, 2006.