Warren, James Francis . <br/><br/>
The Sulu zone 1768-1898 :  the dynamics of external trade, slavery and ethnicity in the transformation of a Southeast Asian maritime state / 
James Francis Warren. 
 - Quezon City :  New Day Pub.,   c1985 
 - xxviii, 390 p. :  ill., maps ;  22 cm. 
<br/><br/> Incldues bibliographical references and index. 
<br/><br/><label>ISBN: </label>9711001713 (BP) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Commerce--History--Sulu Archipelago (Philippines).<br/>Slave trade--History--Philippines.<br/>Ethnology--Philippines.
<br/><br/><label>Index Terms--Curriculum Objective: </label><br/>Peoples and cultures of Mindanao --ANTH 125<br/>Peoples of Southeast Asia and Oceana --ANTH 124