Eder, James F. <br/><br/>
On the road to tribal extinction:   depopulation, deculturation, and adaptive well-being among Batak of Philippines. 

 - Berkeley  :  University of California Press.,  1987. 
 - 273 p. :  ill, :  26 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780520078826 
<br/><br/><label>Dewey Class. No.: </label>951.9 EDR