Warren, James Francis The Sulu zone, 1768-1898 : the dynamics of external trade, slavery, and ethnicity in the transformation of a Southeast Asian maritime state - xxviii, 390 pages : maps Includes bibliographical references (pages 361-381) and index. ISBN: 9711001713 Subjects--Topical Terms: Slave trade--History--Philippines--Sulu ArchipelagoEthnology--Philippines--Sulu Archipelago Subjects--Geographic Terms: Sulu Archipelago (Philippines)--HistorySulu Archipelago (Philippines)--Commerce--History Dewey Class. No.: 959.9902