Traddodwyd y ddarlith yn = Lecture delivered at: Ysgol Dyffryn Nantlle, 17/09/1998.
Delfryd dysg cymeriad : canmlwyddiant Ysgol Dyffryn Nantlle 1898-1998 by Bleddyn Owen Huws. ISBN 0901337706. Published by Cyngor Sir Gwynedd in 1998. Publication and catalogue information, links to buy online and reader comments.