A470 cefnfordd Caerdydd i Lan Conwy : cynllun rhannol Gelligemlyn : datganiad amgylcheddol : crynodeb annhechnegol = A470 Cardiff to Glan Conwy trunk road : Gelligemlyn interim scheme : environmental statement : non-technical summary.
Wales.Welsh Assembly Government.
Wales.Transport and Strategic Regeneration.
[Cardiff] : Welsh Assembly Government,
2008.
Cover title.