Zygmund, Antoni,  1900- <br/><br/>
Trigonometric interpolation/ 
by Antoni Zygmund. 
 - [Chicago]:  University of Chicago Press,  1950. 
 - 99 #. ;  29 cm. 
<br/><br/> Photocopy of typescript.  "Errata": [2] #. inserted. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fourier series.
<br/><br/><label>Dewey Class. No.: </label>518.42