Citazione APA

McMullan, K., & Alley, R. W. (2009). Pearl and Wagner: One funny day. Dial Books for Young Readers.

Stile di citazione Chicago

McMullan, Kate, e R. W. Alley. Pearl and Wagner: One Funny Day. New York: Dial Books for Young Readers, 2009.

Citazione MLA

McMullan, Kate, e R. W. Alley. Pearl and Wagner: One Funny Day. Dial Books for Young Readers, 2009.