Y geiriadur mawr
Subtitle: the complete Welsh-English, English-Welsh dictionary
By: [gan] H. Meurig Evans, W. O. Thomas ; golygydd ymgynghorol (consulting editor) Stephen J. Williams.
Contributors: Thomas, W. O.
Edition: 4th rev. ed.
Publisher: Gwasg Gomer
Published: 1968
Place of publication: Llandysul
Language: eng; wel
Number of pages: 367
Subjects: Welsh language -- Dictionaries -- English.; English language -- Dictionaries -- Welsh.