Dyfyniad APA

United States Pharmacopeial Convention. (2015). USP 38- NF 33 (First supplement.). The Convention.

Dyfyniad Arddull Chicago

United States Pharmacopeial Convention. USP 38- NF 33. First supplement. Rockville, MD: The Convention, 2015.

Dyfyniad MLA

United States Pharmacopeial Convention. USP 38- NF 33. First supplement. The Convention, 2015.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.