| CAMPHOR |
Martindale's 29th |
| CARVACROL |
Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. |
| CITRAL |
Huang, K. C. 1993. The Pharmacology of Chinese Herbs. CRC Press, Boca Raton, FL 388 pp. |
| GERANIOL |
Madaus, G. 1976. Lehrbuch der Biologischen Hilfmittel. Vol,. 1-3. 2862 pp. (+ 144 p. index). Georg Olms Verlag, Hildescheim. Reprint of 1938 Madaus. |
| LIMONENE |
Duke, 1992 * |
| THYMOL |
Leung, A. Y. and Foster, S. 1995. Encyclopedia of Common Natural Ingredients 2nd Ed. John Wiley & Sons, New York. 649 pp. |