Cita APA (7th ed.)

Nuyda, D. G. (1999). A National policy for sustainable mining. IN Seeing green [column]. Philippine Daily Inquirer.

Cita Chicago (17th ed.)

Nuyda, Doris G. "A National Policy for Sustainable Mining. IN Seeing Green [column]." Philippine Daily Inquirer 1999.

Cita MLA (9th ed.)

Nuyda, Doris G. "A National Policy for Sustainable Mining. IN Seeing Green [column]." Philippine Daily Inquirer, 1999.