Kelly, I. (2007). It's a butterfly's life. Holiday House.
Cita Chicago Style (17a ed.)Kelly, Irene. It's a Butterfly's Life. New York: Holiday House, 2007.
Cita MLA (8a ed.)Kelly, Irene. It's a Butterfly's Life. Holiday House, 2007.
Precaución: Estas citas no son 100% exactas.