(1998). 3 PAL unions back pilots. Manila Bulletin.
Cita Chicago (17th ed.)"3 PAL Unions Back Pilots." Manila Bulletin 1998.
Cita MLA (9th ed.)"3 PAL Unions Back Pilots." Manila Bulletin, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)