APA-referens (7:e uppl.)

Chard, D. J. (2004). Holt pre-algebra. Holt, Rinehart and Winston.

Chicago-referens (17:e uppl.)

Chard, David J. Holt Pre-algebra. New York, Toronto: Holt, Rinehart and Winston, 2004.

MLA-referens (9:e uppl.)

Chard, David J. Holt Pre-algebra. Holt, Rinehart and Winston, 2004.