Citazione Stile APA (7a Edizione)

Tan, M. L. (2023). No to plastic containers. IN Gray Matters [column]. Philippine Daily Inquirer.

Citazione stile Chigago Style (17a edizione)

Tan, Michael L. "No to Plastic Containers. IN Gray Matters [column]." Philippine Daily Inquirer 2023.

Citatione MLA (9a ed.)

Tan, Michael L. "No to Plastic Containers. IN Gray Matters [column]." Philippine Daily Inquirer, 2023.