Liwanag, R. (1999). Ambassador Hubbard and wife honored. Manila Bulletin.
Chicagoスタイル(17版)引用形式Liwanag, Rudy. "Ambassador Hubbard and Wife Honored." Manila Bulletin 1999.
MLA(9版)引用形式Liwanag, Rudy. "Ambassador Hubbard and Wife Honored." Manila Bulletin, 1999.
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