Hutchinson, Sarah E. <br/><br/>
Computers, communications and information :  a user's introduction : comprehensive version / 
Sarah E. Hutchinson, Stacey C. Sawyer 
 - 7th ed. 
 - Boston :  Mc Graw Hill,  2000 
 - 1 v. (various paging) :  ill. ;  27 cm 
<br/><br/><label>ISBN: </label>0072297441  RM214.62 
<br/><br/><label>LCCN: </label>99-047331 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers<br/>Telecommunication systems<br/>Information technology