Kraus, Richard G. <br/><br/>
Recreation and leisure in modern society / 
Richard Kraus. 
 - 4th ed. 
 - New York :  HarperCollins Publishers,  1990. 
 - 436 p. :  ill. ;  24 cm. 
<br/><br/>p. 421-423 
<br/><br/><label>ISBN: </label>0673460584 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Recreation--North America.<br/>Recreation--History.--North America<br/>Leisure--Social aspects--North America.<br/>Play--Psychological aspects--North America.