Não informado. (1978). International Building Services Abstracts. Building Services Research and Information Association.
Citação do estilo Chicago (17ª ed.)Não informado. International Building Services Abstracts. Bracknell, Inglaterra: Building Services Research and Information Association, 1978.
Citação MLA (8ª ed.)Não informado. International Building Services Abstracts. Building Services Research and Information Association, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.