Ffarwél i'r sbectol /
Williams, John Roberts
Caernarfon : Gwasg Gwynedd,
2005.
Detholiad o sgyrsiau radio "Dros fy sbectol" = Anthology of radio talks from "Dros fy sbectol".
Llyfryddiaeth = Bibliography: p.151.
Williams, John Roberts
Dros fy sbectol (Radio Programme)
Radio programs