Hanes darluniadol Dyfed = An illustrated history of Dyfed
Lewis, W. J.(William John),1908-
Dyfed (Wales).Library Department.
[Aberystwyth] Dyfed County Council, Library Department,
[1976]
Parallel Welsh and English texts
Previous ed.: published as 'Hanes darluniadol o Geredigion' = 'An illustrated history of Cardiganshire'. Aberystwyth : Cymdeithas Lyfrau Ceredigion, 1970