Alhambra, S. C. (2004). Clark airport wants limited 'open skies'. Manila Times.
Chicago Style (17. basım) AtıfAlhambra, Sheryll C. "Clark Airport Wants Limited 'Open Skies'." Manila Times 2004.
MLA (9th ed.) AtıfAlhambra, Sheryll C. "Clark Airport Wants Limited 'Open Skies'." Manila Times, 2004.
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