Cita APA (7a ed.)

Hill, S. c. a., & Moore, M. (2006). Ruby's perfect day. HarperCollins.

Cita Chicago Style (17a ed.)

Hill, Susan children's author, y Margie Moore. Ruby's Perfect Day. New York: HarperCollins, 2006.

Cita MLA (8a ed.)

Hill, Susan children's author, y Margie Moore. Ruby's Perfect Day. HarperCollins, 2006.

Precaución: Estas citas no son 100% exactas.