Derfler, Frank J <br/><br/>
How networks work / 
Frank J. Derfler, Jr., and Les Freed ; illustrated by Michael Troller, Steve Adams, and Patricia Douglas 
 - 4th ed 
 - Indianapolis, Ind.:  Que,  1998 
 - ix, 212 p.:  col. ill.;  26 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0789715953 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks<br/>Local area networks (Computer networks)