Siytangco, D. M. (1988). Polls shows 47% for 9% vs Aquino. Manila Bulletin.
Cita Chicago (17th ed.)Siytangco, Deedee M. "Polls Shows 47% for 9% Vs Aquino." Manila Bulletin 1988.
Cita MLA (9th ed.)Siytangco, Deedee M. "Polls Shows 47% for 9% Vs Aquino." Manila Bulletin, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.