Williams, Brian K. <br/><br/>
Using information technology :  a practical introduction to computers and communications /  
Brian K. Williams, Stacy C. Sawyer. 
 - 11th edition. 
 - New York :  Mc Graw Hill,  c2015. 
 - xxxii, 588 p. :  colored illustrations ;  28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9781259255663 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telecommunication systems.<br/>Information technology.<br/>Computers.
<br/><br/><label>Dewey Class. No.: </label>CIR 004 W670u 2015