Soni, K.M. <br/><br/>
Signals and systems / 

 - 4th. 
 - New Delhi,q  NA,  c2011. 
 - 361 p. ;  ill. ; 
<br/><br/><label>ISBN: </label>8189757296 
<br/><br/><label>Dewey Class. No.: </label>621.3822320