Cita APA (7th ed.)

Nituda, V. (1981). Primer on the amended 1973 Philippine constitution ..: Amendments approved and ratified on April 7, 1981 plebiscite included (1981 rev. ed.). Vision Philippines.

Cita Chicago (17th ed.)

Nituda, Victor. Primer on the Amended 1973 Philippine Constitution ..: Amendments Approved and Ratified on April 7, 1981 Plebiscite Included. 1981 rev. ed. [The Philippines]: Vision Philippines, 1981.

Cita MLA (9th ed.)

Nituda, Victor. Primer on the Amended 1973 Philippine Constitution ..: Amendments Approved and Ratified on April 7, 1981 Plebiscite Included. 1981 rev. ed. Vision Philippines, 1981.