Babu, P.Ramesh <br/><br/>
Signals and systems. 

 - 4th 
 - New Delhi :  Scitech Publications,       2007. 
 - various pagination 
<br/><br/><label>ISBN: </label>9788183712880 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic Science