The essential oils : vol. 5. Individual essential oils of the plant families / by Ernest Guenther. Guenther, Ernest, 1895- Essences and essential oils. Industria Quimica (Economia) larpcal Tecnologia Quimica larpcal TP958 .G77 661.83 GUE Includes bibliographical references and index. New York : D. Van Nostrand, c1952. c1952. 1948 Text 5 v. : eng