LEON, A. (1999). FUNDAMENTALS OF INFORMATION TECHNOLOGY. LEON TECH WORLD.
Cita Chicago (17th ed.)LEON, ALEXIS. FUNDAMENTALS OF INFORMATION TECHNOLOGY. ONG: LEON TECH WORLD, 1999.
Cita MLA (9th ed.)LEON, ALEXIS. FUNDAMENTALS OF INFORMATION TECHNOLOGY. LEON TECH WORLD, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.