Olivera, B. T. (1981). Jose Yulo: The selfless statesman. U.P. Jorge B. Vargas Filipiniana Research Center.
芝加哥风格引文Olivera, Baldomero T. Jose Yulo: The Selfless Statesman. Mandaluyong, Metro Manila: U.P. Jorge B. Vargas Filipiniana Research Center, 1981.
MLA引文Olivera, Baldomero T. Jose Yulo: The Selfless Statesman. U.P. Jorge B. Vargas Filipiniana Research Center, 1981.
警告：这些引文格式不一定是100％准确.