Black, Uyless D. <br/><br/>
Frame relay networks :  specifications & implementations / 
Uyless Black 
 - New York :  McGraw-Hill,  1994 
 - xii, 234 p. :  ill. ;  24 cm. 
 - McGraw-Hill series on computer communications .
<br/><br/><label>ISBN: </label>0070055580  RM103.20 
<br/><br/><label>LCCN: </label>93-04954 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data transmission systems<br/>Electric relays