Cengage Advantage Books: Precalculus with Unit-Circle Trigonometry

Precalculus with Trigonometry: Concepts and Applications - Student - GOOD

Precalculus: With Unit Circle Trigonometry (with Interactive Video - ACCEPTABLE

Precalculus with Unit-circle Trigon..., Cohen, David C.

Precalculus : With Unit Circle Trigonometry with Interactive Vide

Precalculus: With Unit Circle Trigonom..., Cohen, David