Hopkins, Gerald L. <br/><br/>
The ISDN literacy book / 
Gerald L. Hopkins. 
 - Reading, Mass. :  Addison-Wesley,  1995. 
 - xvi, 367 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0201629798  RM85.63 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Integrated services digital networks