Cita APA (7a ed.)

Philippines. National Historical Institute. (2006). The flag and heraldic code of the Philippines illustrated: Rules and regulations implementing Republic Act No. 8491 (Third edition.). National Historical Institute.

Cita Chicago Style (17a ed.)

Philippines. National Historical Institute. The Flag and Heraldic Code of the Philippines Illustrated: Rules and Regulations Implementing Republic Act No. 8491. Third edition. Manila: National Historical Institute, 2006.

Cita MLA (9a ed.)

Philippines. National Historical Institute. The Flag and Heraldic Code of the Philippines Illustrated: Rules and Regulations Implementing Republic Act No. 8491. Third edition. National Historical Institute, 2006.