Cita APA (7a ed.)
United States Pharmacopeial Convention. (1970). The Pharmacopeia of the United States of America (18a. ed.). USP.
Cita Chicago Style (17a ed.)
United States Pharmacopeial Convention. The Pharmacopeia of the United States of America. 18a. ed. Estados Unidos: USP, 1970.
Cita MLA (9a ed.)
United States Pharmacopeial Convention. The Pharmacopeia of the United States of America. 18a. ed. USP, 1970.
Precaución: Estas citas no son 100% exactas.