Serrano, B. (2007). Alfonso T. Yuchengco: A distinguished life. Philippines Free Press.
Cita Chicago (17th ed.)Serrano, Butch. "Alfonso T. Yuchengco: A Distinguished Life." Philippines Free Press 2007.
Cita MLA (9th ed.)Serrano, Butch. "Alfonso T. Yuchengco: A Distinguished Life." Philippines Free Press, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.