Alegre, R. (1997). Philippine Economic Zone Authority celebrates its 2nd year anniversary. Manila Bulletin.
Citazione stile Chigago Style (17a edizione)Alegre, Robert. "Philippine Economic Zone Authority Celebrates Its 2nd Year Anniversary." Manila Bulletin 1997.
Citatione MLA (9a ed.)Alegre, Robert. "Philippine Economic Zone Authority Celebrates Its 2nd Year Anniversary." Manila Bulletin, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.