Gaya APA

inc., U, S, P, C. (2004). The united state pharmacopica (USA 23), the nasional formulory (NF 23): 1 . New York: the united states pharmacopecal convention.

Gaya MLA

inc., United, States, Pharmacopecial, Convention. "The united state pharmacopica (USA 23), the nasional formulory (NF 23): 1". New York: the united states pharmacopecal convention, 2004. Text.