APA Style
USP 36-NF 31 2013 (The United States Pharmacopeia-National Formulary) Volume 2. (2012).
USA:
The United States Pharmacopeial Convention.
MLA Style
USP 36-NF 31 2013 (The United States Pharmacopeia-National Formulary) Volume 2.
.
USA:
The United States Pharmacopeial Convention,
2012.
Teks.