POPPEL HARVEY L. (1987). INFORMATION TECHNOLOGY: THE TRILLION DOLLAR OPPORTUNITY. MCGRAW-HILL.
Chicagoスタイル(17版)引用形式POPPEL HARVEY L. INFORMATION TECHNOLOGY: THE TRILLION DOLLAR OPPORTUNITY. NEW YORK: MCGRAW-HILL, 1987.
MLA(9版)引用形式POPPEL HARVEY L. INFORMATION TECHNOLOGY: THE TRILLION DOLLAR OPPORTUNITY. MCGRAW-HILL, 1987.
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