Shelly, Gary B. Introduction to computers / Gary B. Shelly, Steven M. Freund and Misty Vermaat - 8th ed. - Boston, MA. : Course Technology/Cengage Learning, c2011. - 40 p. : ill. ; 28 cm. - Shelly Cashman Series . ISBN: 9781439081310 LCCN: Subjects--Topical Terms: Computers LC Class. No.: QA76 / .S53 2011