Usman, E. K. (1999). Acting Governor Isnaji's role in Zambo crisis cited. Manila Bulletin.
Citazione stile Chigago Style (17a edizione)Usman, Edd K. "Acting Governor Isnaji's Role in Zambo Crisis Cited." Manila Bulletin 1999.
Citatione MLA (9a ed.)Usman, Edd K. "Acting Governor Isnaji's Role in Zambo Crisis Cited." Manila Bulletin, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.