APA引文

Olson, J. F. (1997). Grammar essentials. New York: Learning Express.

Trích dẫn kiểu Chicago

Olson, Judith F. Grammar Essentials. New York: Learning Express, 1997.

MLA引文

Olson, Judith F. Grammar Essentials. New York: Learning Express, 1997.

警告：这些引文格式不一定是100％准确.