Cita APA (7th ed.)

Arnold, T. (2009). Green Wilma, frog in space. Dial Books for Young Readers.

Cita Chicago (17th ed.)

Arnold, Tedd. Green Wilma, Frog in Space. New York: Dial Books for Young Readers, 2009.

Cita MLA (8th ed.)

Arnold, Tedd. Green Wilma, Frog in Space. Dial Books for Young Readers, 2009.