Cita APA (7th ed.)

National Drug Policy Program. (2000). Philippine national drug formulary: Essential drugs lists (5th ed.). The National Drug Committee, Philippine National Drug Policy Program, Department of Health.

Cita Chicago (17th ed.)

National Drug Policy Program. Philippine National Drug Formulary: Essential Drugs Lists. 5th ed. Manila: The National Drug Committee, Philippine National Drug Policy Program, Department of Health, 2000.

Cita MLA (9th ed.)

National Drug Policy Program. Philippine National Drug Formulary: Essential Drugs Lists. 5th ed. The National Drug Committee, Philippine National Drug Policy Program, Department of Health, 2000.