Calapan, S. C. (2002). RP's first info center on heart disease opens. Manila Bulletin.
Cita Chicago (17th ed.)Calapan, Sheila C. "RP's First Info Center on Heart Disease Opens." Manila Bulletin 2002.
Cita MLA (9th ed.)Calapan, Sheila C. "RP's First Info Center on Heart Disease Opens." Manila Bulletin, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.