APA
Building Research Establishment, . (1990). Slate clad roofs: fixing of slates and battens. Garston,Watford: Building Research Establishment.
Chicago
Building Research Establishment, . 1990. Slate clad roofs: fixing of slates and battens. Garston,Watford: Building Research Establishment.
Harvard
Building Research Establishment, . (1990). Slate clad roofs: fixing of slates and battens. Garston,Watford: Building Research Establishment.
MLA
Building Research Establishment, . Slate clad roofs: fixing of slates and battens. Garston,Watford: Building Research Establishment. 1990.