18:03Galwad Eto23/11/2010BBC Radio Cymru Duration: 27 o funudau Tue 23rd Nov 2010, 18:03 on BBC Radio CymruCyfle i glywed rhai o bigion 'Galwad Cynnar' eto. Highlights from Galwad Cynnar.GenresFactualScience & NatureBrandGalwad Eto Source: BBC Online