Strutt,Peter. (1992). Longman business English usage. Longman.
Trích dẫn kiểu ChicagoStrutt,Peter. Longman Business English Usage. Longman, 1992.
MLA引文Strutt,Peter. Longman Business English Usage. Longman, 1992.
警告：這些引文格式不一定是100％准確.
APA引文