Dyfyniad APA

ebrary, Inc, Johnson, L. R., & Ghishan, F. K. (2012). Physiology of the gastrointestinal tract (5th ed.). Elsevier Academic Press.

Dyfyniad Arddull Chicago

ebrary, Inc, Leonard R. Johnson, and Fayez K. Ghishan. Physiology of the Gastrointestinal Tract. 5th ed. Burlington, MA: Elsevier Academic Press, 2012.

Dyfyniad MLA

ebrary, Inc, et al. Physiology of the Gastrointestinal Tract. 5th ed. Elsevier Academic Press, 2012.

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