Thomson, A., & Martinet, A. (1990). A Practical English Grammar: Exercises. Oxford: Oxford University Press.
Trích dẫn kiểu ChicagoThomson, A.J., và A.V Martinet. A Practical English Grammar: Exercises. Oxford: Oxford University Press, 1990.
MLA引文Thomson, A.J., và A.V Martinet. A Practical English Grammar: Exercises. Oxford: Oxford University Press, 1990.
警告：這些引文格式不一定是100％准確.