APA (7th ed.) Citation

Philippines & Philippines. National Historical Institute. (2008). The Flag and Heraldic code of the Philippines illustrated: Rules and regulations implementing Republic Act No. 8491 (4th ed.). National Historical Institute.

Chicago Style (17th ed.) Citation

Philippines and Philippines. National Historical Institute. The Flag and Heraldic Code of the Philippines Illustrated: Rules and Regulations Implementing Republic Act No. 8491. 4th ed. Manila: National Historical Institute, 2008.

MLA (9th ed.) Citation

Philippines and Philippines. National Historical Institute. The Flag and Heraldic Code of the Philippines Illustrated: Rules and Regulations Implementing Republic Act No. 8491. 4th ed. National Historical Institute, 2008.