Gaya APA

convention, T, U, S, P. (2002). The United States Pharmacopeia 26: The National Formulary 24 (21th. ed.). Rockville: The United States Pharmacopeial Convention, Inc.

Gaya MLA

convention, The, United, States, Pharmacopeial. "The United States Pharmacopeia 26: The National Formulary 24". 21th. ed. Rockville: The United States Pharmacopeial Convention, Inc, 2002. Text.