(1983). Electricity supply industry: [England, Wales, Südschottland] ; 400 kV, 275 kV and 132 kV transmission system ; showing CEGB regional boundaries and grid control areas ; reproduced from the Ordnance Survey map (1. Jan. 1983.). Cook, Hammond & Kell.
Chicago-Zitierstil (17. Ausg.)Electricity Supply Industry: [England, Wales, Südschottland] ; 400 KV, 275 KV and 132 KV Transmission System ; Showing CEGB Regional Boundaries and Grid Control Areas ; Reproduced from the Ordnance Survey Map. 1. Jan. 1983. s.l: Cook, Hammond & Kell, 1983.
MLA-Zitierstil (9. Ausg.)Electricity Supply Industry: [England, Wales, Südschottland] ; 400 KV, 275 KV and 132 KV Transmission System ; Showing CEGB Regional Boundaries and Grid Control Areas ; Reproduced from the Ordnance Survey Map. 1. Jan. 1983. Cook, Hammond & Kell, 1983.