
A470 Cefnffordd Caerdydd i Lan Conwy : cynllun gwelliant Gelligemlyn : datganiad amgylcheddol : crynodeb annhechnegol = A470 Cardiff to Glan Conwy trunk road : Gelligemlyn improvement : environmental . ISBN 9780750455947. Published by Welsh Assembly Government in 2010. Publication and catalogue information, links to buy online and reader comments.