Secretary of State's guidance : sewage sludge incineration processes under 1 tonne an hour /
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.
PG5/5(91)
Caption title.
Air
Sewage sludge