Não informado. (2002). Building Materials, Export, Components & Equipment. [s.n.].
Chicago-referens (17:e uppl.)Não informado. Building Materials, Export, Components & Equipment. London: [s.n.], 2002.
MLA-referens (8:e uppl.)Não informado. Building Materials, Export, Components & Equipment. [s.n.], 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.