Não informado. (1985). Building Services. Chartered Institution of Building Services Engineers.
Lua i Stíl Chicago (17ú heag.)Não informado. Building Services. London: Chartered Institution of Building Services Engineers, 1985.
Lua MLA (8ú heag.)Não informado. Building Services. Chartered Institution of Building Services Engineers, 1985.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.