Black, Uyless D. <br/><br/>
Data networks :  concepts, theory, and practice /  [Book]. 
Uyless Black.  
 - Englewood Cliffs, N.J. :   Prentice Hall,   1989. 
 - xvi, 877 p. :   ill. ;   25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0131984667 013198599X (intl ed) 
<br/><br/><label>LCCN: </label>88025385 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer networks.<br/>Data transmission systems.