Cita APA (7a ed.)
The United States Pharmacopeial Convention. (2001). The United States Pharmacopeia: The National Formulary, USP:25 y NF:20 (Twentieth Edition.). The United States Pharmaopeial Convention.
Cita Chicago Style (17a ed.)
The United States Pharmacopeial Convention. The United States Pharmacopeia: The National Formulary, USP:25 Y NF:20. Twentieth Edition. (s.i.): The United States Pharmaopeial Convention, 2001.
Cita MLA (9a ed.)
The United States Pharmacopeial Convention. The United States Pharmacopeia: The National Formulary, USP:25 Y NF:20. Twentieth Edition. The United States Pharmaopeial Convention, 2001.
Precaución: Estas citas no son 100% exactas.