Davis, G. B. (1988). Computer data processing. - 2nd ed. , (2nd ed. ,.). McGraw Hill book company.
Chicago Edition CitationDavis, Gordon B. Computer Data Processing. - 2nd Ed. ,. 2nd ed. ,. Singapore: McGraw Hill book company, 1988.
Deismireacht MLADavis, Gordon B. Computer Data Processing. - 2nd Ed. ,. 2nd ed. ,. McGraw Hill book company, 1988.
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