| 其他書名 | A Course of Eleven Lectures Given in Stuttgart, 4th-16th August, 1908. Authorized Translation from Shorthand Report Unrevised by the Lecturer |
| 出版 | Rudolph Steiner Publishing Company, 1955 |
| URL | http://books.google.com.hk/books?id=Cc9hPAAACAAJ&hl=&source=gbs_api |