Summaries of doctoral dissertations / 

 - Chicago:  NU;  1951 
 - 622p.:  ill.;  23 cm. 
 -    vol.18, vol.19, vol.20 .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>social sciences
<br/><br/><label>Dewey Class. No.: </label>300  / NOR