APA (7th ed.) Citation

Duvoisin, R. (2004). Petunia's Christmas. Knopf.

Chicago Style (17th ed.) Citation

Duvoisin, Roger. Petunia's Christmas. New York: Knopf, 2004.

MLA (9th ed.) Citation

Duvoisin, Roger. Petunia's Christmas. Knopf, 2004.

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