Castro, E. R. (1998). Finally, free but quality pre-school education. Manila Bulletin.
Cita Chicago (17th ed.)Castro, Eddee RH. "Finally, Free but Quality Pre-school Education." Manila Bulletin 1998.
Cita MLA (9th ed.)Castro, Eddee RH. "Finally, Free but Quality Pre-school Education." Manila Bulletin, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.