Gaya APA

convention, T, U, S, P. (1989). The United States Pharmacopeia 22 :The National Formulary 17 (22nd.ed). Rockville: The United States Pharmacopeial Convention.

Gaya MLA

convention, The, United, States, Pharmacopeial. "The United States Pharmacopeia 22 :The National Formulary 17". 22nd.ed Rockville: The United States Pharmacopeial Convention, 1989. Text.