Bacus , Elisabeth Ann <br/><br/>
Political economy and interaction  Late prehistory polities in the central Philippines Island /  [microform] : 
Elisabeth Ann Bacus 
 - Ann Arbor, Mich. :  University Microfilms International,  1996 
 - 5 microfisches ;  11x 15 cm. 
<br/><br/>Thesis (Ph.D) - University of Michigan , 1995