Secretary of State's guidance : vegetable oil extraction and fat and oil refining processes /
Great Britain.Department of the Environment.
Great Britain.Scottish Office.
Great Britain.Welsh Office.
Great Britain.Environmental Protection Act 1990.
London : Stationery Office,
1997.
PG6/25(97)
At head of title: Environmental Protection Act 1990, Part I.
Caption title.
Oil industries
Air