Não informado. (1978). Journal of the Chartered Institution of Building Services. Building Services Publications.
Citação do estilo Chicago (17ª ed.)Não informado. Journal of the Chartered Institution of Building Services. London: Building Services Publications, 1978.
Citação MLA (8ª ed.)Não informado. Journal of the Chartered Institution of Building Services. Building Services Publications, 1978.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.