Valencia, L. B. (2001). DOTC makes strides to develop major airports with safety requirements. Manila Bulletin.
Chicago Style (17th ed.) CitationValencia, Lynda B. "DOTC Makes Strides to Develop Major Airports with Safety Requirements." Manila Bulletin 2001.
MLA (9th ed.) CitationValencia, Lynda B. "DOTC Makes Strides to Develop Major Airports with Safety Requirements." Manila Bulletin, 2001.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.