Cengage Advantage Books: Precalculus with Unit-Circle Trigonometry - GOOD

Cengage Advantage Books: Precalculus with Unit-Circle Trigonometry

Cengage Advantage Books: Essen - ACCEPTABLE

Precalculus with Trigonometry: Concepts and Applications - Student - GOOD

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

Precalculus : A Problems-Oriented Approach Hardcover David Cohen