APA (7th ed.) Citation

Brown, T. (1997). What is Earth Day? Philippine Star.

Chicago Style (17th ed.) Citation

Brown, Tim. "What Is Earth Day?" Philippine Star 1997.

MLA (9th ed.) Citation

Brown, Tim. "What Is Earth Day?" Philippine Star, 1997.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.