Williams, Brian K., <br/><br/>
Using information technology :  a practical introduction to computers & communications / 
Brian K. Williams, Stacey C. Sawyer. 
 - 7th ed. 
 - Boston :  McGraw-Hill Irwin,  c2007. 
 - xxiv, 554, 12 p. :  ill. (chiefly col.), col. maps ;  28 cm. 
<br/><br/> On t.p. of previous ed. Stacey C. Sawyer's name appears first. 
<br/><br/><label>ISBN: </label>0072260718 (alk. paper) 9780072260717 
<br/><br/><label>LCCN: </label>2005058404 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers.<br/>Telecommunication systems.<br/>Information technology.
<br/><br/><label>Dewey Class. No.: </label>004