APA引文

Hughes, T. (1999). Birthday letters. Faber and Faber.

芝加哥风格引文

Hughes, Ted. Birthday Letters. London: Faber and Faber, 1999.

MLA引文

Hughes, Ted. Birthday Letters. Faber and Faber, 1999.

警告：这些引文格式不一定是100％准确.