Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.