De Guzman, R. (1998). Air Philippines told to fly 9 PAL aircraft. Manila Bulletin.
Chicagoスタイル(17版)引用形式De Guzman, Ronnie. "Air Philippines Told to Fly 9 PAL Aircraft." Manila Bulletin 1998.
MLA(9版)引用形式De Guzman, Ronnie. "Air Philippines Told to Fly 9 PAL Aircraft." Manila Bulletin, 1998.
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