Worwood, Valerie Ann, 1945- The complete book of essential oils and aromatherapy / by Valerie Ann Worwood. - San Rafael, Calif. : New World Library, c1991. - xvii, 423 p. ; 23 cm. Includes bibliographical references (p. 414) and index. ISBN: 0931432820 (alk. paper) : $16.95 LCCN: 91020111 Subjects--Topical Terms: Aromatherapy. LC Class. No.: RM666.A68 / W67 1991 Dewey Class. No.: 615/.321