Cita APA (7a ed.)

Angeles, E. Y. (1999). Educational challenges we face in the 21st century. Manila Bulletin.

Cita Chicago Style (17a ed.)

Angeles, Emmanuel Y. "Educational Challenges We Face in the 21st Century." Manila Bulletin 1999.

Cita MLA (9a ed.)

Angeles, Emmanuel Y. "Educational Challenges We Face in the 21st Century." Manila Bulletin, 1999.