| 其他書名 | A Study Prepared for the International Labour Office Within the Framework of the World Employment Programme |
| 出版 | Tata McGraw-Hill Publishing Company, 1977 |
| ISBN | 00709645059780070964501 |
| URL | http://books.google.com.hk/books?id=wA4uAAAAMAAJ&hl=&source=gbs_api |