APA aipamena

Cruz, I. A. (1991). Constitutional law (1991 ed.). Central Lawbook Pub.

Chicago Style aipamena

Cruz, Isagani A. Constitutional Law. 1991 ed. Quezon City: Central Lawbook Pub, 1991.

MLA aipamena

Cruz, Isagani A. Constitutional Law. 1991 ed. Central Lawbook Pub, 1991.