American Gastroenterology Association. 1997. Proceedings of the American Digestive Health Foundation-SM international update conference on Helicobacter pylori: Held February 13-16, 1997, McLean, VA. Philadelphia: Saunders.
Citáce podľa APA (7th ed.)American Gastroenterology Association. (1997). Proceedings of the American Digestive Health Foundation-SM international update conference on Helicobacter pylori: Held February 13-16, 1997, McLean, VA. Saunders.
Citácia podle Chicago (17th ed.)American Gastroenterology Association. Proceedings of the American Digestive Health Foundation-SM International Update Conference on Helicobacter Pylori: Held February 13-16, 1997, McLean, VA. Philadelphia: Saunders, 1997.
Citácia podľa MLA (8th ed.)American Gastroenterology Association. Proceedings of the American Digestive Health Foundation-SM International Update Conference on Helicobacter Pylori: Held February 13-16, 1997, McLean, VA. Saunders, 1997.
