APA引文

Gude, K., & Kathy Gude. Advanced Listening and Speaking: CAE. Oxford: Oxford University Press.

Trích dẫn kiểu Chicago

Gude, Kathy, và Kathy Gude. Advanced Listening and Speaking: CAE. Oxford: Oxford University Press.

MLA引文

Gude, Kathy, và Kathy Gude. Advanced Listening and Speaking: CAE. Oxford: Oxford University Press.

警告：这些引文格式不一定是100％准确.