| 其他書名 | An Outline of the Theory of Concentration and Other Writings |
| 出版 | Francis W. Parker School, 2001 |
| 主題 | Education / Teaching / GeneralPsychology / General |
| ISBN | 09613573049780961357306 |
| URL | http://books.google.com.hk/books?id=P7yyAAAACAAJ&hl=&source=gbs_api |