Unesco <br/><br/>
Theses in soical sci. an international analytical catalogue of unpublished doctorate theses, 1940-1950 

 - Paris  Unesco  1952 
 - 235p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Yb4a
<br/><br/><label>Dewey Class. No.: </label>Yb4a  / I2