APA (7th ed.) Citation

Swokowski, E. W. (2019). Precalculus: Functions & graphs (13th edition.). Cengage.

Chicago Style (17th ed.) Citation

Swokowski, Earl W. Precalculus: Functions & Graphs. 13th edition. Boston, MA: Cengage, 2019.

MLA (9th ed.) Citation

Swokowski, Earl W. Precalculus: Functions & Graphs. 13th edition. Cengage, 2019.

Warning: These citations may not always be 100% accurate.