APA引文

(1981). World English ( Workbook ). Orlando, FL: Harcourt, Brace International.

Trích dẫn kiểu Chicago

World English ( Workbook ). Orlando, FL: Harcourt, Brace International, 1981.

MLA引文

World English ( Workbook ). Orlando, FL: Harcourt, Brace International, 1981.

警告：這些引文格式不一定是100％准確.