Sanchez, A. M. (1961). Roots of the sins in the Philippine government. [s.n.].
芝加哥风格引文Sanchez, Antonio M. Roots of the Sins in the Philippine Government. Manilan: [s.n.], 1961.
MLA引文Sanchez, Antonio M. Roots of the Sins in the Philippine Government. [s.n.], 1961.
警告：这些引文格式不一定是100％准确.