Cita APA (7th ed.)

Spiegel, M. R., & Moyer, R. E. (2009). Pre-Calculus (2nd ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Spiegel, Murray R., i Robert E. Moyer. Pre-Calculus. 2nd ed. New York: McGraw-Hill, 2009.

Cita MLA (9th ed.)

Spiegel, Murray R., i Robert E. Moyer. Pre-Calculus. 2nd ed. McGraw-Hill, 2009.

Atenció: Aquestes cites poden no estar 100% correctes.