,TimothyJ.LeO'ary Computing Essentials2015/by Print Resources Timothy J, O'Leary Linda I.O'Leary and Daniel A. O'Leary - NewYork Mc graw- hill 2015 - xxii,408p. ill. 27cm includes index ISBN: 9781259251610 FUTML Standard No.: FUTML Source: B-0034720 Subjects--Personal Names: Linda I. O'LEARYDaniel A.O'Leary LC Class. No.: QA76.9.O63 / O63