(1997). PNB at 81: Renewed strength, renewed commitment. Manila Bulletin.
Chicagoスタイル(17版)引用形式"PNB at 81: Renewed Strength, Renewed Commitment." Manila Bulletin 1997.
MLA(9版)引用形式"PNB at 81: Renewed Strength, Renewed Commitment." Manila Bulletin, 1997.
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