Huizinga, J. <br/><br/>
Homo ludens :  a study of the play-element in culture. 

 - London :  Routledge & K. Paul,  [1949] 
 - International library of sociology and social reconstruction .
<br/><br/>Bibliographical notes. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Play.<br/>Civilization -- Philosophy.--Civilization -- Philosophy.