Gaya APA

PHARMACOPEIA, U. (2007). 2007 USP NF Supplement 1 (1). U.S.A: USP U.S HARMACOPEIA.

Gaya MLA

PHARMACOPEIA, U.S.. "2007 USP NF Supplement 1". 1 U.S.A: USP U.S HARMACOPEIA, 2007. Text.