Gaya APA

USP, . (2002). Usp nf : the official compendia of standards jilid 1 . Torotnto: United states pharmacopeial covention.

Gaya MLA

USP, . "Usp nf : the official compendia of standards jilid 1". Torotnto: United states pharmacopeial covention, 2002. Text.