Sz.-Nagy B. <br/><br/>
Introduction to Real Functions and Orthogonal Expansions. 
Sz.-Nagy B. 
 - New York  Oxford University Press  1965 
 - 447 p. 
<br/><br/> University Texts  in the Mathematical Sciences 
<br/><br/><label>Dewey Class. No.: </label>517.518/Berb.