Demana, F. D., Clemens, S. R., & Waits, B. K. (1992). College algebra & trigonometry: A graphing approach (2nd ed.). Addison-Wesley Pub. Co..
Cita Chicago (17th ed.)Demana, Franklin D., Stanley R. Clemens, i Bert K. Waits. College Algebra & Trigonometry: A Graphing Approach. 2nd ed. Reading, Mass.: Addison-Wesley Pub. Co., 1992.
Cita MLA (8th ed.)Demana, Franklin D., et al. College Algebra & Trigonometry: A Graphing Approach. 2nd ed. Addison-Wesley Pub. Co., 1992.
Atenció: Aquestes cites poden no estar 100% correctes.