Скоростное проведение горизонтальных горных выработок экономика и организация
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | Undetermined |
| Published: |
М
Недра
1967
|
| Physical Description: | 132 |
|---|
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | Undetermined |
| Published: |
М
Недра
1967
|
| Physical Description: | 132 |
|---|