| 其他書名 | Contributions to a Methodical Schooling in Experience of Colour, from the Work of the School in Dornach, Switzerland of Gérard Wagner and Elizabeth Koch |
| 出版 | Anthroposophical Society in Great Britain, 1972 |
| URL | http://books.google.com.hk/books?id=fQr7GgAACAAJ&hl=&source=gbs_api |