Gaya APA

The Official compendia of standards: USP 24 Us pharmacopia III NF 19 national Formulary. (1999). New York: the united states pharmacopecal convention.

Gaya MLA

The Official compendia of standards: USP 24 Us pharmacopia III NF 19 national Formulary. . New York: the united states pharmacopecal convention, 1999. Text.