APA引文

Willoughby, S. S. (1967). Contemporary teaching of secondary school mathematics. New York: Wiley.

Trích dẫn kiểu Chicago

Willoughby, Stephen S. Contemporary Teaching of Secondary School Mathematics. New York: Wiley, 1967.

MLA引文

Willoughby, Stephen S. Contemporary Teaching of Secondary School Mathematics. New York: Wiley, 1967.

警告：這些引文格式不一定是100％准確.