Romulo, B. D. (2005). Zoellick visits the Philippines. Manila Bulletin.
Chicagoスタイル(17版)引用形式Romulo, Beth Day. "Zoellick Visits the Philippines." Manila Bulletin 2005.
MLA(9版)引用形式Romulo, Beth Day. "Zoellick Visits the Philippines." Manila Bulletin, 2005.
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