Borlongan, F. (1997). Population control measures scrutinized. Manila Bulletin.
Cita Chicago (17th ed.)Borlongan, F.C. "Population Control Measures Scrutinized." Manila Bulletin 1997.
Cita MLA (9th ed.)Borlongan, F.C. "Population Control Measures Scrutinized." Manila Bulletin, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.