APA (7th ed.) Citation

Sison, C. V. (2005). Essentials of the 1987 constitution. C & E Pub.

Chicago Style (17th ed.) Citation

Sison, Carmelo V. Essentials of the 1987 Constitution. Quezon City: C & E Pub, 2005.

MLA (9th ed.) Citation

Sison, Carmelo V. Essentials of the 1987 Constitution. C & E Pub, 2005.