Williams, Brian K., <br/><br/>
Using information technology: a practical introduction to computers & communications  
Brian K. Williams, Stacey C. Sawyer, Sarah E. Hutchinson. 
 - 2nd ed. 
 - Chicago :  Irwin,  c1997. 
 - xxxvii, 602 p. :  ill. (some col.) ;  28 cm. 
<br/><br/><label>ISBN: </label>0256209812 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.<br/>Telecommunication systems.<br/>Information technology.