kreyszig, Erwin <br/><br/>
Introductory functional analysis with applications 

 - New York  John Wiley  1978 
 - xiv, 688p., 22 cm. 
<br/><br/><label>ISBN: </label>047103729X 
<br/><br/><label>Dewey Class. No.: </label>515.7,  / DD, Kre