Template:R:cy:GPC
R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present年)， “R:cy:GPC”，Geiriadur Prifysgol Cymru Online (Welsh)，University of Wales Centre for Advanced Welsh & Celtic Studies
R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present年)， “R:cy:GPC”，Geiriadur Prifysgol Cymru Online (Welsh)，University of Wales Centre for Advanced Welsh & Celtic Studies