Aczel, J. <br/><br/>
Lectures on functional equations and their applications/ 

 - New York:  Academic Press,  1966 
 - xx, 510p. 
 - Mathematics in Science and Engineering   v. 19 .
<br/><br/> "Original German title- Vorlesungen uber Funkionalgleichungen und ihre Anwendungen".  "Tr. by Scripta Technica Inc.". 
<br/><br/><label>ISBN: </label>9780080955254 
<br/><br/><label>Dewey Class. No.: </label>515.1  / Ac189.LF