APA aipamena

Villalon, A. F. (2008). Sustainable development, ancient Cordillera-style. Philippine Daily Inquirer.

Chicago Style aipamena

Villalon, Augusto F. "Sustainable Development, Ancient Cordillera-style." Philippine Daily Inquirer 2008.

MLA aipamena

Villalon, Augusto F. "Sustainable Development, Ancient Cordillera-style." Philippine Daily Inquirer, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.