Cita APA (7th ed.)

Tan, M. L. (2017). Promises to keep. IN Opinion [column]. Philippine Daily Inquirer.

Cita Chicago (17th ed.)

Tan, Michael L. "Promises to Keep. IN Opinion [column]." Philippine Daily Inquirer 2017.

Cita MLA (9th ed.)

Tan, Michael L. "Promises to Keep. IN Opinion [column]." Philippine Daily Inquirer, 2017.