Cita APA (7th ed.)

La Union Water System Set Up to Stop Sinkholes. Manila Bulletin.

Cita Chicago (17th ed.)

"La Union Water System Set Up to Stop Sinkholes." Manila Bulletin .

Cita MLA (9th ed.)

"La Union Water System Set Up to Stop Sinkholes." Manila Bulletin, .

Atenció: Aquestes cites poden no estar 100% correctes.