APA引文

Crawford, D. C., & Ryan, D. W. (1984). Acute respiratory insufficiency after endoscopy for bleeding oesophageal varices.

Citação norma Chicago

Crawford, D C., and D W. Ryan. Acute Respiratory Insufficiency After Endoscopy for Bleeding Oesophageal Varices. 1984.

MLA引文

Crawford, D C., and D W. Ryan. Acute Respiratory Insufficiency After Endoscopy for Bleeding Oesophageal Varices. 1984.

警告：這些引文格式不一定是100％准確.