United States Pharmacopeial Convention. (1999). USP DI: United States pharmacopeia dispensing information. United States Pharmacopeial Convention.
Cita Chicago (17th ed.)United States Pharmacopeial Convention. USP DI: United States Pharmacopeia Dispensing Information. Rockville, MM: United States Pharmacopeial Convention, 1999.
Cita MLA (9th ed.)United States Pharmacopeial Convention. USP DI: United States Pharmacopeia Dispensing Information. United States Pharmacopeial Convention, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.