APA引文

Hyman, D. N. (1989). Economics. Boston: Irwin.

Trích dẫn kiểu Chicago

Hyman, David N. Economics. Boston: Irwin, 1989.

MLA引文

Hyman, David N. Economics. Boston: Irwin, 1989.

警告：这些引文格式不一定是100％准确.