Isip, R. (1997). 32 countries to take part in Clark balloon show. Manila Chronicle.
Chicagoスタイル(17版)引用形式Isip, Rendy. "32 Countries to Take Part in Clark Balloon Show." Manila Chronicle 1997.
MLA(9版)引用形式Isip, Rendy. "32 Countries to Take Part in Clark Balloon Show." Manila Chronicle, 1997.
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