18:03Galwad Eto11/08/2009BBC Radio Cymru Duration: 27 o funudau Tue 11th Aug 2009, 18:03 on BBC Radio CymruCyfle i glywed rhai o bigion 'Galwad Cynnar' eto. Highlights from Galwad Cynnar.GenresFactualScience & NatureBrandGalwad Eto Source: BBC Online