Hart, Robert A De J <br/><br/>
Ecosociety  a historical study of ecological man 

 - Dehradun  Natraj publishers  1984 
 - xii, 196 p.; 23cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cultural change<br/>Social change<br/>Social evolution<br/>Social transformation<br/>Sociology