Dyfyniad APA

Feldman,Mark. (1998). Sleisenger and Fordtrans' Gastro intestinal and liver disease: Vol-I (6th ed.). W.B.Saunders.

Dyfyniad Arddull Chicago

Feldman,Mark. Sleisenger and Fordtrans' Gastro Intestinal and Liver Disease: Vol-I. 6th ed. Philadelphia: W.B.Saunders, 1998.

Dyfyniad MLA

Feldman,Mark. Sleisenger and Fordtrans' Gastro Intestinal and Liver Disease: Vol-I. 6th ed. W.B.Saunders, 1998.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.