Não informado. IATUL reprints. International Association of Technological University Libraries.
Chicago-referens (17:e uppl.)Não informado. IATUL Reprints. Loughborough, Inglaterra: International Association of Technological University Libraries.
MLA-referens (8:e uppl.)Não informado. IATUL Reprints. International Association of Technological University Libraries.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.