Title: Geiriadur Prifysgol Cymru. A dictionary of the Welsh language.
Authors: Thomas, R. J. 1908-1976.; Bevan, Gareth A.; Donovan, Patrick J.; University of Wales.
Publisher: Gwasg Prifysgol Cymru,
Year: 1950
Subjects: Welsh language Dictionaries.; Welsh language Dictionaries English.
Contents: Cyfrol 4. S-Zwingliaidd.