APA (7th ed.) Citation

Punongbayan, M. (2010). DENR vows 30% cleaner air by 2011. Philippine Star.

Chicago Style (17th ed.) Citation

Punongbayan, Michael. "DENR Vows 30% Cleaner Air by 2011." Philippine Star 2010.

MLA (9th ed.) Citation

Punongbayan, Michael. "DENR Vows 30% Cleaner Air by 2011." Philippine Star, 2010.

Warning: These citations may not always be 100% accurate.