BoAr: Ref: Geiriadyr Newydd
http://boar.org.uk/repwxe1GeiriadurNewydd.htm
The Bourne Archive
Reference:
H. M. Evans and W. O. Thomas. Y Geiriadur Newydd . Published
by Llyfrau’r Dryw, Llandybie (1970)
432 pp. 182 x 120 mm. A Welsh-English dictionary with definitions in Welsh and an English-Welsh dictionary without definitions. Some Welsh grammar.