Isip, R. (1997). 32 countries to take part in Clark balloon show. Manila Chronicle.
Lua i Stíl Chicago (17ú heag.)Isip, Rendy. "32 Countries to Take Part in Clark Balloon Show." Manila Chronicle 1997.
Lua MLA (9ú heag.)Isip, Rendy. "32 Countries to Take Part in Clark Balloon Show." Manila Chronicle, 1997.
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