TY - BOOK ED - United States Pharmacopeial Convention TI - The United States pharmacopeia: USP 24 ; The National Formulary : NF 19 SN - 1889788031 AV - RS141.2 P492 1999 PY - 1999/// CY - Rockville, Maryland PB - United States Pharmacopeial Convention KW - Farmacopeas KW - Estados Unidos N1 - "Official from January 1, 2000" ER -