Hack, John <br/><br/>
The changing physical environment of the Hopi indians of Arizona 

 - Cambridge :  Harvard university-<The> Peabody museum of american archaeology and ethnology,  1942 
 - 85 p: :  ill. h. t., cartes, graph., tab. 
 - Papers of the Peabody museum of american archaeology and ethnology, 35(1) .
<br/><br/> <Donation Engel> 
<br/><br/>bibliogr. p. 83-85