Gabel, Robert A. <br/><br/>
Signals and linear systems / 
Robert A. Gabel, Richard A. Roberts. 
 - 2nd ed. 
 - New York :  John Wiley & Sons,  1980. 
 - 492 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0471049581 
<br/><br/><label>LCCN: </label>80-14811 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric networks.<br/>Electric engineering--Mathematics.<br/>System analysis.