| 其他書名 | Address to the European Regional Conference on Educational Assistance to Developing Areas, Its Social and Economic Effects, Cologne, Germany, May 4, 1970 |
| 出版 | International Bank for Reconstruction and Development, International Development Association, 1970 |
| URL | http://books.google.com.hk/books?id=YNhlAQAACAAJ&hl=&source=gbs_api |