Cita APA

(1985). Supplement 4: USP XXI-NF XVI (Twenty First ed. rev.). Rockville: The Unites States Pharmacopeia of America.

Citación estilo Chicago

Supplement 4: USP XXI-NF XVI. Twenty First ed. rev. Rockville: The Unites States Pharmacopeia of America, 1985.

Cita MLA

Supplement 4: USP XXI-NF XVI. Twenty First ed. rev. Rockville: The Unites States Pharmacopeia of America, 1985.