Não informado. (1934). American Journal of Digestive Diseases and Nutrition. American Gastro-Enterological Association.
Chicago-Zitierstil (17. Ausg.)Não informado. American Journal of Digestive Diseases and Nutrition. Fort Wayne, Ind: American Gastro-Enterological Association, 1934.
MLA-Zitierstil (8. Ausg.)Não informado. American Journal of Digestive Diseases and Nutrition. American Gastro-Enterological Association, 1934.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.