APA引文

Keller, C. (2000). Understanding MA27 - A Numerical Example. Unspecified.

Chicago Style (17th ed.) Citation

Keller, C. Understanding MA27 - A Numerical Example. Unspecified, 2000.

MLA引文

Keller, C. Understanding MA27 - A Numerical Example. Unspecified, 2000.

警告：這些引文格式不一定是100％准確.