Guide to tools and equipment for labour-based road construction.
| 格式: | 图书 |
|---|---|
| 语言: | English |
| 出版: |
Geneva
International Labour Office
1981.
|
| 丛编: | A WEP study
|
| 主题: |
| 格式: | 图书 |
|---|---|
| 语言: | English |
| 出版: |
Geneva
International Labour Office
1981.
|
| 丛编: | A WEP study
|
| 主题: |