Gaya APA

Pharmacopeia, U. (2007). USP 30 NF 25 Volume I : The United Pharmacopedia The National Formulary (Volume 1). Baltimore, Maryland: United States Press.

Gaya MLA

Pharmacopeia, U.S. "USP 30 NF 25 Volume I : The United Pharmacopedia The National Formulary". Volume 1 Baltimore, Maryland: United States Press, 2007. Text.