Sawyer, Stacey C. <br/><br/>
Using information technology :  a practical introduction to computer and communications / 
Stacey C. Sawyer, Brian K. Williams, Sarah E. Hutchinson. 
 - Brief 3rd ed. 
 - Boston :  Irwin McGraw-Hill,  c1999. 
 - xxii, 345 p. : cheifly col. il 
<br/><br/> Earlier ed. Brian K. Williams, Sarah E. Hutchinson. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.<br/>Telecommunications systems.<br/>Information technology.