Sreekanth, P V <br/><br/>
Digital transmission hierarchies and networks PDH, SDH and OTH 

 - Hyderabad  Universities Press  2010 
 - 532 
<br/><br/> reprint 2013 
<br/><br/><label>ISBN: </label>9788173716997 
<br/><br/><label>Standard No.: </label>118236 
<br/><br/><label>Subjects--Index Terms: </label>Digital transmission Electronic communication 
<br/><br/><label>Dewey Class. No.: </label>621.3821  / SRE