Gwilym Gibbon has written:
'History of the London County Council 1889-1939'
Gwilym R. has written: 'Detholiad o gerddi Gwilym R.'
Gwilym Meredydd Jones has written: 'Drymiau amser'
Gwilym M. Jones has written: 'Dawns yr ysgubau'
Gwilym Beechey has written: 'An eighteenth-century tribute to John Stanley'
Gwilym Williams has written: 'Understanding insurance' -- subject(s): Insurance
A. Gibbon has written: 'Olympics'
Gwilym Tudur has written: 'Amen, dyn pren' 'Y disgwyl' 'Arallgyfeirio'
Gwilym Thomas Hughes has written: 'Plant y niwl' '' Tw bi shiwar'' '\\'
Percival Gibbon has written: 'Souls in bondage'
Sheila Gibbon has written: 'Computerised administration'
Gwilym B. J. Pryce has written: 'Dependence of equilibrium credit rationing on the nature of loan insurance'
Gwilym J. Rees has written: 'Tondu House' -- subject(s): Historic buildings, Mansions, Tondu House