APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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