LEON, A. (1999). FUNDAMENTALS OF INFORMATION TECHNOLOGY. LEON TECH WORLD.
Chicagoスタイル(17版)引用形式LEON, ALEXIS. FUNDAMENTALS OF INFORMATION TECHNOLOGY. ONG: LEON TECH WORLD, 1999.
MLA(9版)引用形式LEON, ALEXIS. FUNDAMENTALS OF INFORMATION TECHNOLOGY. LEON TECH WORLD, 1999.
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