Haase, Markus <br/><br/>
Functional analysis  : an elementary introduction / 

 - Providence:  American Mathematical Society,  2014 
 - xviii, 372p. Bibl. Index. 
 - Graduate Studies in Mathematics ; 156 .
<br/><br/><label>ISBN: </label>9781470454739 
<br/><br/><label>Dewey Class. No.: </label>515.7  / H354.FA