Schiller, Carol. 500 formulas for aromatherapy : mixing essential oils for every use / Carol Schiller & David Schiller. - New York : Sterling Pub., 1994. - 128 p. ; 28 cm. Includes index. ISBN: 0806905840 : $12.95 (Can. $16.95) LCCN: 93039895 Subjects--Topical Terms: Aromatherapy. LC Class. No.: RM666.A68 / S35 1994 Dewey Class. No.: 615/.321