Cita APA (7th ed.)

Barnett, R. A., Ziegler, M. R., & Byleen, K. E. (2003). Precalculus: Functions and graphs (Fifth edition.). McGraw-Hill.

Cita Chicago (17th ed.)

Barnett, Raymond A., Michael R. Ziegler, i Karl E. Byleen. Precalculus: Functions and Graphs. Fifth edition. New York, NY: McGraw-Hill, 2003.

Cita MLA (9th ed.)

Barnett, Raymond A., et al. Precalculus: Functions and Graphs. Fifth edition. McGraw-Hill, 2003.