APA
Collins R. J., . (1989). Porous aggregates in concrete : sandstones from N.W. England. Garston,Watford: Building Research Establishment.
Chicago
Collins R J, . 1989. Porous aggregates in concrete : sandstones from N.W. England. Garston,Watford: Building Research Establishment.
Harvard
Collins R. J., . (1989). Porous aggregates in concrete : sandstones from N.W. England. Garston,Watford: Building Research Establishment.
MLA
Collins R J, . Porous aggregates in concrete : sandstones from N.W. England. Garston,Watford: Building Research Establishment. 1989.