Feldman,Mark. (1998). Sleisenger and Fordtrans' Gastro intestinal and liver disease: Vol-I (6th ed.). W.B.Saunders.
Chicago Style aipamenaFeldman,Mark. Sleisenger and Fordtrans' Gastro Intestinal and Liver Disease: Vol-I. 6th ed. Philadelphia: W.B.Saunders, 1998.
MLA aipamenaFeldman,Mark. Sleisenger and Fordtrans' Gastro Intestinal and Liver Disease: Vol-I. 6th ed. W.B.Saunders, 1998.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.