Potential employment effects of substituting fibre optic cable for copper wire.
| 主要作者: | |
|---|---|
| 格式: | 图书 |
| 语言: | English |
| 出版: |
Geneva
International Labour Office
1990.
|
| 丛编: | Working paper / World employment programme research. Technology and employment project
no.208 |
| 主题: |