| 其他書名 | Diligently Compared and Catalogued for Co-operating Libraries as a Guide to Microfilm Copies of the Heidelberg Collection |
| 出版 | Research Center for Group Dynamics, Institute for Social Research, University of Michigan, 1958 |
| URL | http://books.google.com.hk/books?id=4RjwzwEACAAJ&hl=&source=gbs_api |