APA引文

Collins, G. (2014). Letter to the editor. W.B. Saunders.

芝加哥风格引文

Collins, G. Letter to the Editor. W.B. Saunders, 2014.

MLA引文

Collins, G. Letter to the Editor. W.B. Saunders, 2014.

警告：这些引文格式不一定是100％准确.