Não informado. (1978). International Building Services Abstracts. Building Services Research and Information Association.
Chicago-referens (17:e uppl.)Não informado. International Building Services Abstracts. Bracknell, Inglaterra: Building Services Research and Information Association, 1978.
MLA-referens (8:e uppl.)Não informado. International Building Services Abstracts. Building Services Research and Information Association, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.