Crisostomo, I. T. (2001). Dr. Pio Valenzuela's last KKK mission. Philippine Star.
芝加哥风格引文Crisostomo, Isabelo T. "Dr. Pio Valenzuela's Last KKK Mission." Philippine Star 2001.
MLA引文Crisostomo, Isabelo T. "Dr. Pio Valenzuela's Last KKK Mission." Philippine Star, 2001.
警告：这些引文格式不一定是100％准确.