Koch, Vivienne. <br/><br/>
W.B. Yeats, the tragic phase :  a study of the last poems / 
by Vivienne Koch. 
 - London :  Routledge & K. Paul,  1951. 
 - 151 p. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Yeats, W. B. 1865-1939 --Criticism and interpretation.
<br/><br/><label>Dewey Class. No.: </label>821.912  / KOW 1951