APA引文

Geffner, A. B. (1991). Business letters the easy way. New York: Barron’s.

Trích dẫn kiểu Chicago

Geffner, Andrea B. Business Letters the Easy Way. New York: Barron’s, 1991.

MLA引文

Geffner, Andrea B. Business Letters the Easy Way. New York: Barron’s, 1991.

警告：这些引文格式不一定是100％准确.