Villanueva, O. (1997). Sales of passenger cars down by 15% in January. Manila Chronicle.
Cita Chicago (17th ed.)Villanueva, Othel. "Sales of Passenger Cars Down by 15% in January." Manila Chronicle 1997.
Cita MLA (9th ed.)Villanueva, Othel. "Sales of Passenger Cars Down by 15% in January." Manila Chronicle, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.