WAGENVOORT , H. <br/><br/>
FREEDOM AND RESTRICTION IN SCIENCE AND ITS ASPECTS IN SOCIETY :  CONGRESS PROMOTED BY THE NETHERLANDS UNIVERSITY FOR THE DISCUSSION OF THE SUBJECT 

 - THE HAGUE  NETHERLANDS  1955 
 - xii , 196 p.  24 cm 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>326 FRE 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Slavery and freedom<br/>වහල්භාවය හා නිදහස
<br/><br/><label>Dewey Class. No.: </label>326  / FRE