12 books
Caniadau - Scholar's Choice Edition
Taliesin - Primary Source Edition
The Elucidarium and Other Tracts in Welsh from Llyvyr Agkyr Llandewivrevi A.D. 1346 (Jesus College Ms. 119) Volume 1346
An Elementary Welsh Grammar; Phonology and Accidence
Taliesin
A Welsh Grammar, Historical and Comparative
The Elucidarium and Other Tracts in Welsh from Llyvyr Agkyr Llandewivrevi A.D. 1346 (Jesus College Ms. 119)
Taliesin (Volume 28)
Gweledigaetheu y Bardd Cwsc
A Welsh Grammar, Historical and Comparative; Phonology and Accidence
Caniadau
Cerdd Dafo