Citazione Stile APA (7a Edizione)

Hungerford, T. W., Jovell, I., & Mayberry, B. (2002). Precalculus: A graphing approach. Holt, Rinehart and Winston.

Citazione stile Chigago Style (17a edizione)

Hungerford, Thomas W., Irene Jovell, e Betty Mayberry. Precalculus: A Graphing Approach. Austin: Holt, Rinehart and Winston, 2002.

Citatione MLA (9a ed.)

Hungerford, Thomas W., et al. Precalculus: A Graphing Approach. Holt, Rinehart and Winston, 2002.