Warren, J. F. (2000). The global economy and the Sulu zone: Connections, commodities and culture. New Day.
Chicago-referens (17:e uppl.)Warren, James Francis. The Global Economy and the Sulu Zone: Connections, Commodities and Culture. Quezon City: New Day, 2000.
MLA-referens (9:e uppl.)Warren, James Francis. The Global Economy and the Sulu Zone: Connections, Commodities and Culture. New Day, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.