Llyfrgell Genedlaethol Cymru: crynodeb byr o'i hanes a'i gweithgareddau.
Subtitle: The National Library of Wales: a brief summary of its history and its activities.
Edition: [New ed.].
Publisher: National Library of Wales
Published: 1967
Place of publication: Aberystwyth
Language: eng
Number of pages: 40
Subjects: National Library of Wales.
Notes: Parallel Welsh and English text.