Estrada, E. (2003). 'Morality' check on Caloocan mayor urged. Manila Times.
芝加哥风格引文Estrada, Eric. "'Morality' Check on Caloocan Mayor Urged." Manila Times 2003.
MLA引文Estrada, Eric. "'Morality' Check on Caloocan Mayor Urged." Manila Times, 2003.
警告：这些引文格式不一定是100％准确.