MATHEWS MARTIN S. (1990). EXCEL 2.1 MADE EASY: IBM PC VERSION. OSBORNE MCGRAW-HILL.
Chicago Style aipamenaMATHEWS MARTIN S. EXCEL 2.1 MADE EASY: IBM PC VERSION. NEW YORK: OSBORNE MCGRAW-HILL, 1990.
MLA aipamenaMATHEWS MARTIN S. EXCEL 2.1 MADE EASY: IBM PC VERSION. OSBORNE MCGRAW-HILL, 1990.
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