Widder, D.V. <br/><br/>
An Introduction to Transform Theory 
/ by D.V. Widder 
 - New York;  Academic Press:  1971. 
 - xiv, 253p. 
<br/><br/><label>ISBN: </label>0127485503 
<br/><br/><label>Dewey Class. No.: </label>515.723  / WID/A