Oppenheim, Alan V. <br/><br/>
Discrete-time signal processing 

 - 2nd ed. 
 - New Delhi  Pearson Education  1999 
 - xxvi,870 p. 
 - Pearson education signal processing series .
<br/><br/><label>ISBN: </label>8178082446 
<br/><br/><label>Dewey Class. No.: </label>S/C-S/T D65,4:(B) M9O,N9;10