O'Leary, Timothy J., Williams, Brian K., O'Leary, Linda I. McGraw-Hill Computing Essentials,
McGraw-Hill Publ. Co., 1990, XXIV, 240 p., 0-07-047874-0.
O'Leary, Timothy J., Williams, Brian K., O'Leary, Linda I. .
McGraw-Hill Computing Essentials.
New York: McGraw-Hill Publ. Co., 1990, XXIV, 240 p., 0-07-047874-0.
O'Leary, Timothy J., Williams, Brian K., O'Leary, Linda I. (1990)
McGraw-Hill Computing Essentials,
New York: McGraw-Hill Publ. Co., XXIV, 240 p., 0-07-047874-0
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