Cruz, I. A. (1980). Philippine political law (4th ed.). Central Lawbook Pub. Co.
芝加哥风格引文Cruz, Isagani A. Philippine Political Law. 4th ed. Quezon City: Central Lawbook Pub. Co, 1980.
MLA引文Cruz, Isagani A. Philippine Political Law. 4th ed. Central Lawbook Pub. Co, 1980.
警告：这些引文格式不一定是100％准确.