APA
Harrison W., Building Research Establishment, . (1993). Avoiding latent mortar defects in masonry. Garston, Watford: Building Research Establishment.
Chicago
Harrison W.H, Building Research Establishment, . 1993. Avoiding latent mortar defects in masonry. Garston, Watford: Building Research Establishment.
Harvard
Harrison W., Building Research Establishment, . (1993). Avoiding latent mortar defects in masonry. Garston, Watford: Building Research Establishment.
MLA
Harrison W.H, Building Research Establishment, . Avoiding latent mortar defects in masonry. Garston, Watford: Building Research Establishment. 1993.