Ellen, R. F., 1947- <br/><br/>
Environment, subsistence, and system :  the ecology of small-scale social formations / 
Roy Ellen 
 - Cambridge :  Cambridge University Press,  1982 
 - 324 p. ;  23 cm. 
 - Themes in the social sciences .
<br/><br/>Bibliography: p.287-312 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ethnology--Philosophy<br/>Man--Influence of environment