एपीए उद्धरण

(1998). Sleisenger & fordtran's Gastrointestinal and Liver disease: Pathophysiology, diagnosis, management. Philadelphia, Pa: Saunders.

शिकागो स्टाइल उद्धरण

Sleisenger & Fordtran's Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management. Philadelphia, Pa: Saunders, 1998.

एमएलए उद्धरण

Sleisenger & Fordtran's Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management. Philadelphia, Pa: Saunders, 1998.