Yn gwynn ha du : geryow kanow a'n blasenn arghans 'Yn gwynn ha du' gans treylyans dhe Sowsnek = the words of songs from the compact disc 'Yn gwynn ha du' with English translation by Graham Sandercock. ISBN 0907064760. Published by Kesva an Taves Kernewek in 1997. Publication and catalogue information, links to buy online and reader comments.