Dyfyniad APA
Gwyn, R. (2002). Communicating health and illness. SAGE.
Dyfyniad Arddull Chicago
Gwyn, Richard. Communicating Health and Illness. London: SAGE, 2002.
Dyfyniad MLA
Gwyn, Richard. Communicating Health and Illness. SAGE, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.