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DAVID, CYGANSKI, ORR, JOHN A.. (2000). INFORMATION TECHNOLOGY INSIDE AND OUTSIDE . United States of America: PRINTICE-HALL.

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DAVID, CYGANSKI, ORR, JOHN A.. INFORMATION TECHNOLOGY INSIDE AND OUTSIDE. United States of America: PRINTICE-HALL, 2000. Text.

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DAVID, CYGANSKI, ORR, JOHN A.. INFORMATION TECHNOLOGY INSIDE AND OUTSIDE. United States of America: PRINTICE-HALL, 2000. Text.

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DAVID, CYGANSKI, ORR, JOHN A.. INFORMATION TECHNOLOGY INSIDE AND OUTSIDE. United States of America: PRINTICE-HALL, 2000. Print.