APA引文

(1964). English 900: Prepared by english language services, INC. New York: The macmilian company.

Trích dẫn kiểu Chicago

English 900: Prepared By English Language Services, INC. New York: The macmilian company, 1964.

MLA引文

English 900: Prepared By English Language Services, INC. New York: The macmilian company, 1964.

警告：這些引文格式不一定是100％准確.