Ahmed, N. U. <br/><br/>
Discrete-time signals and systems  
Nasir Ahmed, T. Natarajan. 
 - Reston, Va. :  Reston Pub. Co.,  c1983. 
 - xiii, 398 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0835913759 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Discrete-time systems.
<br/><br/><label>Dewey Class. No.: </label>621.38223