Cita APA (7th ed.)

Johnston, T., & Corwin, J. H. (1999). Big red apple. Scholastic.

Cita Chicago (17th ed.)

Johnston, Tony, i Judith Hoffman Corwin. Big Red Apple. New York: Scholastic, 1999.

Cita MLA (8th ed.)

Johnston, Tony, i Judith Hoffman Corwin. Big Red Apple. Scholastic, 1999.