APA引文

Armstrong, D. (1999). Endoscopic evaluation of gastro-esophageal reflux disease. Yale Journal of Biology and Medicine.

Citação norma Chicago

Armstrong, D. Endoscopic Evaluation of Gastro-esophageal Reflux Disease. Yale Journal of Biology and Medicine, 1999.

MLA引文

Armstrong, D. Endoscopic Evaluation of Gastro-esophageal Reflux Disease. Yale Journal of Biology and Medicine, 1999.

警告：這些引文格式不一定是100％准確.