Não informado. (1958). Data processor. International Business Machines, Data Processing Division.
Chicago (17e ed.) BronvermeldingNão informado. Data Processor. White Plains, NY: International Business Machines, Data Processing Division, 1958.
MLA (8e ed.) BronvermeldingNão informado. Data Processor. International Business Machines, Data Processing Division, 1958.
Let op: Deze citaties zijn niet altijd 100% accuraat.