APA
United States Pharmacopeal Convention Incorporation, . (1990). USP xxii NF xvii supplement no - 2: supplement 2 (the national formulary). Rockville: United State Pharmacopeial Convention Incorporation.
Chicago
United States Pharmacopeal Convention Incorporation, . 1990. USP xxii NF xvii supplement no - 2: supplement 2 (the national formulary). Rockville: United State Pharmacopeial Convention Incorporation.
Harvard
United States Pharmacopeal Convention Incorporation, . (1990). USP xxii NF xvii supplement no - 2: supplement 2 (the national formulary). Rockville: United State Pharmacopeial Convention Incorporation.
MLA
United States Pharmacopeal Convention Incorporation, . USP xxii NF xvii supplement no - 2: supplement 2 (the national formulary). Rockville: United State Pharmacopeial Convention Incorporation. 1990.