Dyfyniad APA

(2004). Thinkwell's precalculus: Companion workbook. [Austin]: Thinkwell Corporation.

Dyfyniad Arddull Chicago

Thinkwell's Precalculus: Companion Workbook. [Austin]: Thinkwell Corporation, 2004.

Dyfyniad MLA

Thinkwell's Precalculus: Companion Workbook. [Austin]: Thinkwell Corporation, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.