Gelber, Stan. <br/><br/>
Data communications today : networks, the Internet, and the Enterprise   networks, the Internet, and the Enterprise  
Stan Gelber. 
 - 2nd ed. 
 - Upper Saddle River, N.J. :  Prentice Hall PTR,  c1997. 
 - xiii, 465 p. :  ill., maps ;  25 cm. 
<br/><br/> Rev. ed. of: Introduction to data communications. c1991. 
<br/><br/><label>ISBN: </label>0138640009 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems.<br/>Computer networks.
<br/><br/><label>Dewey Class. No.: </label>004.6