Mwg ail-law : beth yw e a'r hyn y gallwch ei wneud.
Owens, Christine.
Wales.Welsh Assembly Government.
[Caerdydd] : Llywodraeth Cynulliad Cymru,
2003.
Written by: Christine Owens, Head of Tobacco Control, Roy Castle Lung Cancer Foundation.
Bound back to back and inverted.
Cover title.
Passive smoking