APA-referens (7:e uppl.)

Bridwell, N. (2001). Clifford's happy Mother's Day. Scholastic.

Chicago-referens (17:e uppl.)

Bridwell, Norman. Clifford's Happy Mother's Day. New York: Scholastic, 2001.

MLA-referens (8:e uppl.)

Bridwell, Norman. Clifford's Happy Mother's Day. Scholastic, 2001.