Levij, I. S. (1959). The acute and chronic peptic lesions of the stomach and the duodenum: Their frequency, mutual relation and correlation with other diseases. Excelsior.
Chicago-referens (17:e uppl.)Levij, Izak Salomon. The Acute and Chronic Peptic Lesions of the Stomach and the Duodenum: Their Frequency, Mutual Relation and Correlation with Other Diseases. 's-Gravenhage: Excelsior, 1959.
MLA-referens (8:e uppl.)Levij, Izak Salomon. The Acute and Chronic Peptic Lesions of the Stomach and the Duodenum: Their Frequency, Mutual Relation and Correlation with Other Diseases. Excelsior, 1959.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.