APA引文

Hewings, M. (1999). Advanced English grammar. 1999. Cambridge University Press.

Chicago Edition Citation

Hewings, Martin. Advanced English Grammar. 1999. Cambridge University Press, 1999.

MLA引文

Hewings, Martin. Advanced English Grammar. 1999. Cambridge University Press, 1999.

警告：這些引文格式不一定是100％准確.