Chubb, Michael,  <br/><br/>
One third of our time? :  An introduction to recreation behavior and resources / 
Michael Chubb, Holly R. Chubb ; cartography by Sherman Hollander. 
 - New York :  Wiley,  1981. 
 - 742 pages :  illustration ;   24 cm. 
<br/><br/>Includes index Bibliography: p.713-722 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Recreation--United States<br/>Recreation--Psychological aspects<br/>National resources--United States