18:08Galwad Eto03/05/2010BBC Radio Cymru Duration: 37 o funudau Mon 3rd May 2010, 18:08 on BBC Radio CymruCyfle i glywed rhai o bigion 'Galwad Cynnar' eto. Highlights from Galwad Cynnar.GenresFactualScience & NatureBrandGalwad Eto Source: BBC Online