Warren, James Francis,  1942-. <br/><br/>
The Sulu zone, 1768-1898 :  the dynamic of external trade, slavery and ethnicity in the transformation of a Southeast Asian maritime state / 
James Francis Warren. 
 - Quezon City, Philippines :  New Day Publishers,  1985. 
 - xxviii, 396 p. :  ill. ;  23 cm. 
<br/><br/> Originally published by Singapore University Press, 1981. 
<br/><br/>Includes bibliographical references : p.361-381 and index. 
<br/><br/><label>ISBN: </label>9711000725  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Slave--Trade--History.--Philippines--Sulu Archipelago<br/>Ethnology--Philippines--Sutu Archipelago.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Sulu Archipelago (Philippines)--Commerce--History.