Cita APA (7th ed.)

Sullivan, M., & Sullivan, M. 1. J. 2. (2003). Precalculus: Enhanced with graphing utilities (3rd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Sullivan, Michael, i Michael 1967 July 2- Sullivan. Precalculus: Enhanced with Graphing Utilities. 3rd ed. Upper Saddle River, N.J: Prentice Hall, 2003.

Cita MLA (9th ed.)

Sullivan, Michael, i Michael 1967 July 2- Sullivan. Precalculus: Enhanced with Graphing Utilities. 3rd ed. Prentice Hall, 2003.