Nuyda, D. G. (1999). A National policy for sustainable mining. IN Seeing green [column]. Philippine Daily Inquirer.
Citación estilo ChicagoNuyda, Doris G. "A National Policy for Sustainable Mining. IN Seeing Green [column]." Philippine Daily Inquirer 1999.
Cita MLANuyda, Doris G. "A National Policy for Sustainable Mining. IN Seeing Green [column]." Philippine Daily Inquirer, 1999.
Warning: These citations may not always be 100% accurate.