Não informado. (1987). High technology business. Infotechnology Publishing.
Chicago (17e ed.) BronvermeldingNão informado. High Technology Business. Boston, Mass: Infotechnology Publishing, 1987.
MLA (8e ed.) BronvermeldingNão informado. High Technology Business. Infotechnology Publishing, 1987.
Let op: Deze citaties zijn niet altijd 100% accuraat.