APA引文

Leithold, L. (1989). Trigonometry. Addison-Wesley.

芝加哥风格引文

Leithold, Louis. Trigonometry. Reading, Mass: Addison-Wesley, 1989.

MLA引文

Leithold, Louis. Trigonometry. Addison-Wesley, 1989.

警告：这些引文格式不一定是100％准确.