Dyfyniad APA
ebrary, Inc, & Thomas, H. C. (2014). Viral hepatitis (4th ed.). John Wiley & Sons.
Dyfyniad Arddull Chicago
ebrary, Inc, and H. C. Thomas. Viral Hepatitis. 4th ed. Chichester, West Sussex: John Wiley & Sons, 2014.
Dyfyniad MLA
ebrary, Inc, and H. C. Thomas. Viral Hepatitis. 4th ed. John Wiley & Sons, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.