Cita APA (7th ed.)

Gordon, R., & Williams, B. (2012). Spiral (1st American ed.). Chicken House/Scholastic.

Cita Chicago (17th ed.)

Gordon, Roderick, i Brian Williams. Spiral. 1st American ed. New York: Chicken House/Scholastic, 2012.

Cita MLA (8th ed.)

Gordon, Roderick, i Brian Williams. Spiral. 1st American ed. Chicken House/Scholastic, 2012.