Não informado. (1960). Canadian Building Digest. National Research Council of Canada, Division of Building Research.
Citação do estilo Chicago (17ª ed.)Não informado. Canadian Building Digest. Ottawa: National Research Council of Canada, Division of Building Research, 1960.
Citação MLA (8ª ed.)Não informado. Canadian Building Digest. National Research Council of Canada, Division of Building Research, 1960.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.