Title: 500 Formulas For Aromatherapy: Mixing Essential Oils for Every Use, Author: Carol Schiller
Title: The Aromatherapy Encyclopedia: A Concise Guide to Over 395 Plant Oils, Author: Carol Schiller
Title: Healing Oils: 500 Formulas for Aromatherapy, Author: David Schiller
Title: Aromatherapy for Life Empowerment: Using Essential Oils to Enhance Body, Mind, Spirit Well-Being, Author: David Schiller