Cita APA (7th ed.)

Autor, R. (2000). Serving others: A social responsibility. Manila Bulletin.

Cita Chicago (17th ed.)

Autor, Roberto. "Serving Others: A Social Responsibility." Manila Bulletin 2000.

Cita MLA (9th ed.)

Autor, Roberto. "Serving Others: A Social Responsibility." Manila Bulletin, 2000.