Cruz, I. A., & Cruz, C. L. (2014). Philippine political law (2014 edition.). Central Lawbook Pub.
Chicago Style aipamenaCruz, Isagani A., and Carlo L. Cruz. Philippine Political Law. 2014 edition. Quezon City: Central Lawbook Pub, 2014.
MLA aipamenaCruz, Isagani A., and Carlo L. Cruz. Philippine Political Law. 2014 edition. Central Lawbook Pub, 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.