Sawyer Stacey C. Williams Brian K. <br/><br/>
Using Information Technology :  A Practical Untroduction to Computers and Communications 

 - 6th ed. 
 - New York  McGraw-Hill Technology Education  2005 
 - 304 p. 
<br/><br/><label>ISBN: </label>0072882905 
<br/><br/><label>Subjects--Topical Terms: </label><br/>”TELECOMMUNICATION SYSTEMS”
<br/><br/><label>LC Class. No.: </label>QA76.5  / S198U 2005