APA引文

Frankel, I., & Irene Frankel. (1998). Gateways: Integrated english. New York, NY, USA: Oxford University Press.

Trích dẫn kiểu Chicago

Frankel, Irene, và Irene Frankel. Gateways: Integrated English. New York, NY, USA: Oxford University Press, 1998.

MLA引文

Frankel, Irene, và Irene Frankel. Gateways: Integrated English. New York, NY, USA: Oxford University Press, 1998.

警告：这些引文格式不一定是100％准确.