Kreyszig, Erwin. <br/><br/>
Introductory functional analysis with applications / 

 - New York :  Wiley,  c1978. 
 - xiv, 688 p. :  ill. ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0471507318 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functional analysis.
<br/><br/><label>Dewey Class. No.: </label>515/.7