Y geiriadur mawr
Subtitle: the complete Welsh-English, English-Welsh dictionary
By: H. Meurig Evans, W.O. Thomas ; golygydd ymgynghorol (consulting editor) Stephen J. Williams
Contributors: Thomas, W. O. (William Owen)
Edition: 3rd ed. (rev.).
Publisher: Llyfrau'r Dryw; Aberystwyth Gomer
Published: 1963
Place of publication: Llandybie; Aberystwyth
Language: eng
Number of pages: 476
Subjects: Welsh; Welsh language; Dictionaries; English language; English