Williams  <br/><br/>
Using information technology : a practical introduction to computers & communications  
/ Brian K. Williams, Stacey C. Sawyer, Sara E. Hutchinson. 
 - 3rd ed.. 
 - Boston  McGraw Hill  1999. 
 - xxx, 610p.  col. ill.  28cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0256261466 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers<br/>Information technology<br/>Telecommunications systems
<br/><br/><label>Dewey Class. No.: </label>004 WIL 1999