| 其他書名 | Prepared for the United Nations Conference on the Application of Science and Technology for the Benefit of the Less Developed Areas |
| 出版 | Agency for International Development, 1963 |
| URL | http://books.google.com.hk/books?id=OEyllRPpgjYC&hl=&source=gbs_api |
| EBook | FULL_PUBLIC_DOMAIN |