Gaya APA

Convention, U, S, P. (2009). US. Pharmacopeia 32 National Formulary 27 (Edisi 32). Washington: United States Pharmacopeial Convention.

Gaya MLA

Convention, United, States, Pharmacopeial. "US. Pharmacopeia 32 National Formulary 27". Edisi 32 Washington: United States Pharmacopeial Convention, 2009. Text.