Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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