APA引文

(2001). Thinkwell's precalculus. [Austin, Tex.]: Thinkwell.

Trích dẫn kiểu Chicago

Thinkwell's Precalculus. [Austin, Tex.]: Thinkwell, 2001.

MLA引文

Thinkwell's Precalculus. [Austin, Tex.]: Thinkwell, 2001.

警告：這些引文格式不一定是100％准確.