Berberian S.K. <br/><br/>
Notes on Spectral Theory. 
Berberian S.K. 
 - Toronto et al, D.Van Nostrand Company  Inc.  1966 
 - 121 p. 
<br/><br/> Van Nostrand Mathematical Studies =5 
<br/><br/><label>Dewey Class. No.: </label>517.984/Berb.