CLIFTON H D. (1983). BUSINESS DATA SYSTEMS- A PRACTICAL GUIDE TO SYSTEMS ANALYSIS AND DATA PROCESSING. PRENTICE -HALL INTERNATIONAL, INC.
Chicago-čujuhus (17. p.)CLIFTON H D. BUSINESS DATA SYSTEMS- A PRACTICAL GUIDE TO SYSTEMS ANALYSIS AND DATA PROCESSING. NEW JERSEY: PRENTICE -HALL INTERNATIONAL, INC, 1983.
MLA-čujuhus (9. p.)CLIFTON H D. BUSINESS DATA SYSTEMS- A PRACTICAL GUIDE TO SYSTEMS ANALYSIS AND DATA PROCESSING. PRENTICE -HALL INTERNATIONAL, INC, 1983.
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