APA (7th ed.) Citation

Philippines, Central Book Supply, Inc, & Central Book Supply, Inc. The 1987 constitution of the Republic of the Philippines (college edition.).

Chicago Style (17th ed.) Citation

Philippines, Inc Central Book Supply, and Inc Central Book Supply. The 1987 Constitution of the Republic of the Philippines. college edition.

MLA (9th ed.) Citation

Philippines, et al. The 1987 Constitution of the Republic of the Philippines. college edition.