APA
Building Research Establishment, . (1988). Pitched roofs: re-tiling or re-slating of older type timber roofs. Garston,Watford: Building Research Establishment.
Chicago
Building Research Establishment, . 1988. Pitched roofs: re-tiling or re-slating of older type timber roofs. Garston,Watford: Building Research Establishment.
Harvard
Building Research Establishment, . (1988). Pitched roofs: re-tiling or re-slating of older type timber roofs. Garston,Watford: Building Research Establishment.
MLA
Building Research Establishment, . Pitched roofs: re-tiling or re-slating of older type timber roofs. Garston,Watford: Building Research Establishment. 1988.
