Halmos , Paul  R   . <br/><br/>
A hilbert  space prolem book /  
by Paul  R . Halmos. 
 - New Delhi :   Narosa Pulishing House ,   1978. 
 - xvii, 365p. :   Tables and charts ;   23cm .  
<br/><br/>Includes index, reference 
<br/><br/><label>ISBN: </label> Rs. 48.00 (Pb) 
<br/><br/><label>Subjects--Index Terms: </label>MATHEMATICS 
<br/><br/><label>Dewey Class. No.: </label>514.224  / HAL/H