APA
United Kingdom, Scottish Executive, NAFW & Department of the Environment for Northern Ireland. (2000). The air quality strategy for England, Scotland, Wales and Northern Ireland. London: DETR.
Chicago
United Kingdom, Scottish Executive, NAFW and Department of the Environment for Northern Ireland. 2000. The air quality strategy for England, Scotland, Wales and Northern Ireland. London: DETR.
Harvard
United Kingdom, Scottish Executive, NAFW and Department of the Environment for Northern Ireland. (2000). The air quality strategy for England, Scotland, Wales and Northern Ireland. London: DETR.
MLA
United Kingdom, Scottish Executive, NAFW and Department of the Environment for Northern Ireland. The air quality strategy for England, Scotland, Wales and Northern Ireland. London: DETR. 2000.
