1916-1966, Coiste Cuimhneacháin Náisiúnta,
Rhan oArchif Plaid Cymru,
Rhan oArchif Plaid Cymru,
Rhan oArchif Plaid Cymru,
Rhan oArchif Plaid Cymru,
50 Facts about Britain's Economy,
Rhan oArchif Plaid Cymru,
50 Questions and Answers on British Coal,
Rhan oArchif Plaid Cymru,
80 Cwestiwn ac ateb ar Blaid Cymru (dau gopi),
Rhan oArchif Plaid Cymru,
A. Barratt Brown, The Universal Light,
Rhan oArchif Plaid Cymru,
A. Berriedale Keith, The British Commonwealth,
Rhan oArchif Plaid Cymru,
A British National Movement, Six Points of Sanity,
Rhan oArchif Plaid Cymru,
Rhan oArchif Plaid Cymru,
A. Dorothy Hooper, 'Water supplies in rural Wales', UCW, Aberystwyth,
Rhan oArchif Plaid Cymru,
A. G. B. Fisher, Economic Self-sufficiency,
Rhan oArchif Plaid Cymru,
Rhan oArchif Plaid Cymru,
'A guild of public servants of Wales' gan Harri Webb,
Rhan oArchif Plaid Cymru,
A. J. C. Kerr, Scottish Opinion Survey,
Rhan oArchif Plaid Cymru,
A. J. P. Taylor. The Great Deterrent Myth,
Rhan oArchif Plaid Cymru,
A. J. P. Taylor, The Great Deterrent Myth,
Rhan oArchif Plaid Cymru,
'A New Nation and a New Party', erthygl gan Emrys Roberts,
Rhan oArchif Plaid Cymru,