UNITED STATES OF PHARMACOPEIAL CONVENTION United sates of pharmacopeia 31: National formulary 26, V-3 National formulary 26 - 31st - Maryland United states Pharmacoeial convention Inc 2008 - xxi,2561-3553+56 - 3 . 26 ; 31: ; formulary ; National ; pharmacopeia ; sates ; United ISBN: 1-889788-54-6 Subjects--Topical Terms: Pharmacopeias(615.11) Dewey Class. No.: 615.117 3 USP