Não informado. (1987). High technology business. Infotechnology Publishing.
Chicago-referens (17:e uppl.)Não informado. High Technology Business. Boston, Mass: Infotechnology Publishing, 1987.
MLA-referens (8:e uppl.)Não informado. High Technology Business. Infotechnology Publishing, 1987.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.