(first mention)
Hedd Wyn: Canrif o Gofio, S4C, 6 September 2017, 21:30.
(subsequent mentions)
Hedd Wyn
Hedd Wyn: Canrif o Gofio, S4C, 6 September 2017, 21:30
Hedd Wyn: Canrif o Gofio, S4C, 6 September 2017, online video recording, S4C CatchUp, <http://www.s4c.cymru/clic/e_level2.shtml?programme_id=536707668> [accessed 12 September 2024].
Hedd Wyn: Canrif o Gofio, S4C, 6 September 2017, online video recording, S4C CatchUp, <http://www.s4c.cymru/clic/e_level2.shtml?programme_id=536707668> [accessed 12 September 2024]