Rhestr o adar Cymru gan gynnwys datganiad o safle a dosbarthiad pob rhywogaeth
Jones, P. Hope(Peter Hope),1935-
Jones, E. V. Breeze(Edward V. Breeze),1929-1997.
National Museum of Wales.
[Cardiff] [Amgueddfa Genedlaethol Cymru]
1973
Birds