The Sulu zone, 1768-1898 : the dynamic of external trade, slavery and ethnicity in the transformation of a Southeast Asian maritime state - Warren, James Francis, 1942-. (Quezon City, Philippines : New Day Publishers, 1985)
Originally published by Singapore University Press, 1981.
Includes bibliographical references : p.361-381 and index.
Keywords: Slave -- Trade -- Philippines -- Sulu Archipelago -- History; Ethnology -- Philippines -- Sutu Archipelago; Sulu Archipelago (Philippines) -- Commerce -- History