Krech, Shepard. <br/><br/>
Ecology, conservation, and Northe American indians. 

 - Washington-US :   Smithsonian Institution,   2004. 
 - p. 11-16 :   il. 
 - Irregular 
 - Vol.25, n. 2(2004) 
 - Anthronotes ;   Vol. 25, n. 2 .
 - Smithsonian Institution. .
<br/><br/><br/>Inglés.