(1997). Pushing for a stronger and vibrant aviation sector. Manila Bulletin.
Chicago Style aipamena"Pushing for a Stronger and Vibrant Aviation Sector." Manila Bulletin 1997.
MLA aipamena"Pushing for a Stronger and Vibrant Aviation Sector." Manila Bulletin, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.