APA (7th ed.) Zitazioa

(2001). Natural ingredients for pharmaceuticals. Centre for the Promotion of Imports from Developing Countries.

Chicago Style (17th ed.) Zitazioa

Natural Ingredients for Pharmaceuticals. Rotterdam: Centre for the Promotion of Imports from Developing Countries, 2001.

MLA (9th ed.) Zitazioa

Natural Ingredients for Pharmaceuticals. Centre for the Promotion of Imports from Developing Countries, 2001.