By Education & Science, Dept.of
By Driving Standards Agency
By Great Britain: Office for Standards in Education
By Victoria and Albert Museum
By Great Britain: Home Office
By National Physical Laboratory
By PAT PETRIE, etc.
By Dept.of Health
By Central Office of Information
By Great Britain: Forestry Commission
By Geological Sciences Inst.
By Building Research Establishment
By Great Britain: Department of Education and Science
By Education Department
By Transport, Dept.of
By Scottish Education Dept.
By Jenny Hall, Ralph Merrifield
By Bill Giles
By Great Britain: Scottish Development Deptartment
By Great Britain: Department of the Environment
By Office for National Statistics