Não informado. (2002). Canadian building abstracts. National Research Council of Canada, Division of Building Research.
Citação do estilo Chicago (17ª ed.)Não informado. Canadian Building Abstracts. Ottawa: National Research Council of Canada, Division of Building Research, 2002.
Citação MLA (8ª ed.)Não informado. Canadian Building Abstracts. National Research Council of Canada, Division of Building Research, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.