APA

The United States Pharmacopeial Convention, . (2011). USP 34. NF 29. Rockville: United States Pharmacopeial Convention.

Chicago

The United States Pharmacopeial Convention, . 2011. USP 34. NF 29. Rockville: United States Pharmacopeial Convention.

Harvard

The United States Pharmacopeial Convention, . (2011). USP 34. NF 29. Rockville: United States Pharmacopeial Convention.

MLA

The United States Pharmacopeial Convention, . USP 34. NF 29. Rockville: United States Pharmacopeial Convention. 2011.