Não informado. (1966). Gastroenterology abstracts and citations. National Institute of Arthritis, Metabolism and Digestive Diseases.
Chicago-Zitierstil (17. Ausg.)Não informado. Gastroenterology Abstracts and Citations. Bethesda, Md: National Institute of Arthritis, Metabolism and Digestive Diseases, 1966.
MLA-Zitierstil (8. Ausg.)Não informado. Gastroenterology Abstracts and Citations. National Institute of Arthritis, Metabolism and Digestive Diseases, 1966.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.