APA aipamena

De Leon, H. S., & Lugue, E. E. (1980). Textbook on the new Philippine constitution (1980 rev. ed.). Rex Book Store.

Chicago Style aipamena

De Leon, Hector S., and Emilio E. Lugue. Textbook on the New Philippine Constitution. 1980 rev. ed. Manila: Rex Book Store, 1980.

MLA aipamena

De Leon, Hector S., and Emilio E. Lugue. Textbook on the New Philippine Constitution. 1980 rev. ed. Rex Book Store, 1980.