APA
Department of Energy, . (1977). Tidal power barrages in the Severn estuary : recent evidence on their feasibility. London: HMSO.
Chicago
Department of Energy, . 1977. Tidal power barrages in the Severn estuary : recent evidence on their feasibility. London: HMSO.
Harvard
Department of Energy, . (1977). Tidal power barrages in the Severn estuary : recent evidence on their feasibility. London: HMSO.
MLA
Department of Energy, . Tidal power barrages in the Severn estuary : recent evidence on their feasibility. London: HMSO. 1977.