Gwyddau yng Ngregynog = Geese at Gregynog = with a translation by Joseph P. Clancy a chydag engrafiadau pren gan = and wood engravings by Colin See-Paynton by R. Gerallt Jones. ISBN 0948714891. Published by Gwasg Gregynog in 2000. Publication and catalogue information, links to buy online and reader comments.