Não informado. (1960). Canadian Building Digest. National Research Council of Canada, Division of Building Research.
Chicago-referens (17:e uppl.)Não informado. Canadian Building Digest. Ottawa: National Research Council of Canada, Division of Building Research, 1960.
MLA-referens (8:e uppl.)Não informado. Canadian Building Digest. National Research Council of Canada, Division of Building Research, 1960.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.