Secretary of State's guidance : processes for the polishing or etching of glass products using hydrofluoric acid /
Great Britain.Department of the Environment.
Great Britain.Scottish Office.
Great Britain.Welsh Office.
Great Britain.Environmental Protection Act 1990.
London : HMSO,
1991.
At head of title : Environmental Protection Act, Part I.
PG3/6(91)
Caption title.
Air
Glass manufacture
Hydrofluoric acid