Wlliams, Brian K. <br/><br/>
Using information technology  a practical introduction to computers & communications 
Brian K. Williams, Stacey C. Sawyer 
 - 7th.ed 
 - London  McGraw Hill/Irwin  c2007 
 - xxiv,554p.:  ill.;  28cm 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9780071107686 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information technology<br/>ANS, DNS, DIP, DIS