Oppenheim, Alan V; Willsky, Alan S & Nawab, S Hamid <br/><br/>
Signals & systems .-2nd ed .-978-81-203-1246-3 

 - Phi Learning, New Delhi  2012 
 - xxx,957 
<br/><br/><label>ISBN: </label>978-81-203-1246-3 
<br/><br/><label>Dewey Class. No.: </label>621.38043 Opp