APA aipamena

Offemaria, R. (1999). Potable water: The world's most precious commodity. Manila Times.

Chicago Style aipamena

Offemaria, Rodel. "Potable Water: The World's Most Precious Commodity." Manila Times 1999.

MLA aipamena

Offemaria, Rodel. "Potable Water: The World's Most Precious Commodity." Manila Times, 1999.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.