Warren, James Francis, 1942- 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. - xlvii, 390 pages : illustrations, maps ; 23 cm Includes index Bibliography: pages 361-381 ISBN: 9789971693862 RM95.20 Subjects--Topical Terms: Slave trade--History.--Philippines--Sulu ArchipelagoEthnology--Philippines--Sulu Archipelago. Subjects--Geographic Terms: Sulu Archipelago (Philippines)--History.Sulu Archipelago (Philippines)--Commerce--History. Dewey Class. No.: 959.9902