Williams  <br/><br/>
Using information technology : a practical introduction to computers & communications  
/ Brian K. Williams, Stacy C. Sawyer. 
 - 7th ed.. 
 - Boston  McGraw-Hill/Irwin  2007. 
 - xxiv, 554p.  ill., col.  28cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780071107686  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers<br/>Information technology<br/>Telecommunication systems
<br/><br/><label>Dewey Class. No.: </label>004 WIL 2007