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