Não informado. (1987). High technology business. Infotechnology Publishing.
Chicago-Zitierstil (17. Ausg.)Não informado. High Technology Business. Boston, Mass: Infotechnology Publishing, 1987.
MLA-Zitierstil (8. Ausg.)Não informado. High Technology Business. Infotechnology Publishing, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.