Isip, R. (1997). 32 countries to take part in Clark balloon show. Manila Chronicle.
Chicago-viite (17. p.)Isip, Rendy. "32 Countries to Take Part in Clark Balloon Show." Manila Chronicle 1997.
MLA-viite (9. p.)Isip, Rendy. "32 Countries to Take Part in Clark Balloon Show." Manila Chronicle, 1997.
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