APA Style

The United State Pharmacopeia : USP 27, NF. 22, buku 2 ( United State Pharmacopeial Convention ). (2004). USA: United State Pharmacopeial Convention.

MLA Style

The United State Pharmacopeia : USP 27, NF. 22, buku 2 ( United State Pharmacopeial Convention ). 1. USA: United State Pharmacopeial Convention, 2004. Text.