Williams,B.K, stacey C. Sawyer & Sarah E. Hutchinson <br/><br/>
Using information technology:a practical introduction to computers and communications 

 - 3rd ed. 
 - Boston   McGraw Hill  1999 
 - 610p. colloured illustrations 
<br/><br/><label>ISBN: </label>041733288-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>computers<br/>telecommunications system<br/>information technology
<br/><br/><label>LC Class. No.: </label>QA 76.5  / W55 1999