Kreyszig, E <br/><br/>
Introductory functional analysis with applications 
E. Kreyszig 
 - Singapore  John Wiley & Sons  2001 
 - xiv  688 
<br/><br/><label>ISBN: </label>9971-51-381-1 
<br/><br/><label>Dewey Class. No.: </label>5.01  / KREY