Abbugao, M. (1998). 31st ASEAN Ministerial conference opens today. Manila Bulletin.
Chicagoスタイル(17版)引用形式Abbugao, Martin. "31st ASEAN Ministerial Conference Opens Today." Manila Bulletin 1998.
MLA(9版)引用形式Abbugao, Martin. "31st ASEAN Ministerial Conference Opens Today." Manila Bulletin, 1998.
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