Gaya APA

Convention, T, U, S, P. (2009). USP 32 - NF 27 : The United States Pharmacopeia - The National Formulary (Vol.2 Ed. 2). Maryland, Baltimore: The United States Pharmacopeial.

Gaya MLA

Convention, The, United, States, Pharmacopeia. "USP 32 - NF 27 : The United States Pharmacopeia - The National Formulary". Vol.2 Ed. 2 Maryland, Baltimore: The United States Pharmacopeial, 2009. Text.