Gaya APA

Cohen, J, L., Till, A. (2000). US. Pharmacopeia 24 National Formulary 19 Supplenment vol.1 (Volume 1). Washington: United States Pharmacopeial Convention.

Gaya MLA

Cohen, Jordan, L.., Till, Alice. "US. Pharmacopeia 24 National Formulary 19 Supplenment vol.1". Volume 1 Washington: United States Pharmacopeial Convention, 2000. Text.