Комплексная организация труда в очистных и подготовительных забоях угольных шахт
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | Undetermined |
| Published: |
М
Недра
1964
|
| Physical Description: | 135 |
|---|
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | Undetermined |
| Published: |
М
Недра
1964
|
| Physical Description: | 135 |
|---|