Cita APA

(2005). Thinkwell's precalculus. [Austin Tex]: Thinkwell Corporation.

Chicago Style Citation

Thinkwell's Precalculus. [Austin Tex]: Thinkwell Corporation, 2005.

Cita MLA

Thinkwell's Precalculus. [Austin Tex]: Thinkwell Corporation, 2005.

Atenció: Aquestes cites poden no estar 100% correctes.