Não informado. (1971). The Building services engineer. Batiste Publications.
Chicago-referens (17:e uppl.)Não informado. The Building Services Engineer. London: Batiste Publications, 1971.
MLA-referens (8:e uppl.)Não informado. The Building Services Engineer. Batiste Publications, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.