Oppenheim, A.V., et al <br/><br/>
Signals & systems 
A.V. Oppenheim, et al 
 - 2 
 - New Delhi  Prentice Hall of India  1997 
 - xxiv  957 
<br/><br/><label>ISBN: </label>9788120312463 
<br/><br/><label>Dewey Class. No.: </label>621.382  / OPP