Gruffudd, Heini, 1946-, Ioan, Elwyn, Chubb, Ray, 2003

Gruffudd, Heini, 1946-, 2003

Gruffudd, Heini, 1946-, 2000

Gruffudd, Heini, 1946-, Ó Riain, Seán, 1990

Gruffudd, Heini, 1946-, University of Wales. Board of Celtic Studies, Campbell, Cefin, Morris, Steve, Williams, Colin H., Baker, Colin, Baker, Colin, 1949-, Jones, Hywel, Jones, Glyn E., Jones, Meirion Prys, 2000

Gruffudd, Heini, 1946-, 1998

Gruffudd, Heini, 1946-, 1969

Gruffudd, Heini, 1946-, 2003

Gruffudd, Heini, 1946-,

Gruffudd, Heini, 1946-, Roberts, Glenys M. (Glenys Mair), 1998

Davies, Carolyn, Bebb, Lynne, 2005

Owen, Sian, 1965-, Davies, Carolyn, Bebb, Lynne, Williams, Kyffin, 1918-, 2005

Davies, Carolyn, Bebb, Lynne, Owen , Sian (Addasiad Cymraeg),

Davies, Carolyn, 2001

Gruffudd, Heini, 1946-, Gruffudd, Heini, Davies, Carolyn, 1988

Owen, Sian (Addas.), Davies, Carolyn, Bebb, Lynne, 2009

Davies, Carolyn, Bebb, Lynne,

Davies, Carolyn, Bebb, Lynne, 200902

Owen, Sian, Owen, Sian (Addas.), Davies, Carolyn, Bebb, Lynne,

Davies, Carolyn, Bebb, Lynne, 2005