Duff, G. (1994). Personalized perfumes: More than 40 recipes for making fragrances with essential oils. Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)Duff, Gail. Personalized Perfumes: More than 40 Recipes for Making Fragrances with Essential Oils. New York: Simon & Schuster, 1994.
Lua MLA (9ú heag.)Duff, Gail. Personalized Perfumes: More than 40 Recipes for Making Fragrances with Essential Oils. Simon & Schuster, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.