Diaz, R. V. (2002). Understanding earthquakes. Manila Times.
Cita Chicago (17th ed.)Diaz, Romy V. "Understanding Earthquakes." Manila Times 2002.
Cita MLA (9th ed.)Diaz, Romy V. "Understanding Earthquakes." Manila Times, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.