Citazione Stile APA (7a Edizione)

Barnett, R. A., Ziegler, M. R., & Byleen, K. E. (2001). Precalculus: Functions and graphs (5th ed.). McGraw Hill.

Citazione stile Chigago Style (17a edizione)

Barnett, Raymond A., Michael R. Ziegler, e Karl E. Byleen. Precalculus: Functions and Graphs. 5th ed. Boston: McGraw Hill, 2001.

Citatione MLA (9a ed.)

Barnett, Raymond A., et al. Precalculus: Functions and Graphs. 5th ed. McGraw Hill, 2001.