Oppenheim, Alan. V. Oppenheim, Alan. V. & Willsky, Alan. S. <br/><br/>
Signals & Systems 

 - 2nd Ed. 
 - New Delhi  Prentice - Hall of India Pvt. Ltd.  1998 
 - xxx, 946p  20 cm. 
<br/><br/><br/>Text in English 
<br/><br/><label>ISBN: </label>9788120312463 
<br/><br/><label>Dewey Class. No.: </label>621. 38043  / OPP