Agpalo, R. E. (2006). Philippine constitutional law. Rex Book Sstore.
芝加哥风格引文Agpalo, Ruben E. Philippine Constitutional Law. Manila: Rex Book Sstore, 2006.
MLA引文Agpalo, Ruben E. Philippine Constitutional Law. Rex Book Sstore, 2006.
警告：这些引文格式不一定是100％准确.