HUTCHINSON E. &SAWYER C. <br/><br/>
Computers, commucations & information ; auser's introdution 

 - 2ed 
 -  New delhi; irwin  1998 
 - xvi,572p 
<br/><br/><label>ISBN: </label>0-256-25277-7 
<br/><br/><label>Dewey Class. No.: </label>4