APA引文

Naylor H. Helen & Murphy R. Raymond. (1997). Essential Grammar in Use Supplementary Exercises with Answers. Cambridge, Cambridge University Press, 1997.

Chicago Style (17th ed.) Citation

Naylor H. Helen and Murphy R. Raymond. Essential Grammar in Use Supplementary Exercises with Answers. Cambridge, Cambridge University Press, 1997, 1997.

MLA引文

Naylor H. Helen and Murphy R. Raymond. Essential Grammar in Use Supplementary Exercises with Answers. Cambridge, Cambridge University Press, 1997, 1997.

警告：這些引文格式不一定是100％准確.