Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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