Cyflwyniad gan Gwyn Thomas, Bardd Cenedlaethol Cymru 2006-07 = Introduction by Gwyn Thomas, National Poet of Wales 2006-07.
Cerddi cyfiawnder. Published by Bwrdd Cyfiawnder Troseddol Gogledd Cymru et al. in 2007. Publication and catalogue information, links to buy online and reader comments.