Black, Uyless D. <br/><br/>
Data networks  concepts, theory, and practice. 
Uyless Black 
 - Englewood Cliffs, N.J.  Prentice-Hall  1989 
 - 877 p. : ill. ; 24 cm. 
<br/><br/><label>ISBN: </label>013198599X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computers