Citação norma APA

Choi, J. H., & Lee, S. K. (2013). Percutaneous Transhepatic Cholangioscopy: Does Its Role Still Exist? The Korean Society of Gastrointestinal Endoscopy.

Citação norma Chicago

Choi, Joon Hyuk, and Sung Koo Lee. Percutaneous Transhepatic Cholangioscopy: Does Its Role Still Exist? The Korean Society of Gastrointestinal Endoscopy, 2013.

Citação norma MLA

Choi, Joon Hyuk, and Sung Koo Lee. Percutaneous Transhepatic Cholangioscopy: Does Its Role Still Exist? The Korean Society of Gastrointestinal Endoscopy, 2013.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.