Cita APA (7th ed.)

Bridwell, N. (2000). Clifford´s: School house (1a. ed.). Scholastic.

Cita Chicago (17th ed.)

Bridwell, Norman. Clifford´s: School House. 1a. ed. New York: Scholastic, 2000.

Cita MLA (9th ed.)

Bridwell, Norman. Clifford´s: School House. 1a. ed. Scholastic, 2000.