Alegre, R. (1997). Philippine Economic Zone Authority celebrates its 2nd year anniversary. Manila Bulletin.
Chicago-referens (17:e uppl.)Alegre, Robert. "Philippine Economic Zone Authority Celebrates Its 2nd Year Anniversary." Manila Bulletin 1997.
MLA-referens (9:e uppl.)Alegre, Robert. "Philippine Economic Zone Authority Celebrates Its 2nd Year Anniversary." Manila Bulletin, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.