Cita APA (7a ed.)

Swokowski, E. W., & Cole, J. A. (1998). Precalculus: Functions and graphs (9th ed.). Brooks, Cole Pub. Co.

Cita Chicago Style (17a ed.)

Swokowski, Earl William, y Jeffery A. Cole. Precalculus: Functions and Graphs. 9th ed. Pacific Grove, CA: Brooks, Cole Pub. Co, 1998.

Cita MLA (9a ed.)

Swokowski, Earl William, y Jeffery A. Cole. Precalculus: Functions and Graphs. 9th ed. Brooks, Cole Pub. Co, 1998.