Cita APA (7th ed.)

Sullivan, M. (2012). Precalculus (9th ed.). Pearson Prentice Hall.

Cita Chicago (17th ed.)

Sullivan, Michael. Precalculus. 9th ed. Upper Saddle River, NJ: Pearson Prentice Hall, 2012.

Cita MLA (9th ed.)

Sullivan, Michael. Precalculus. 9th ed. Pearson Prentice Hall, 2012.