APA引文

Hewings, M. (2019). Advanced English Grammar (1st.). Cambridge.

芝加哥风格引文

Hewings, Martin. Advanced English Grammar. 1st. New Delhi: Cambridge, 2019.

MLA引文

Hewings, Martin. Advanced English Grammar. 1st. Cambridge, 2019.

警告：这些引文格式不一定是100％准确.