Формирование качества угля в процессе добычи
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | Russian |
| Published: |
М
Недра
1983
|
| Subjects: |
| Physical Description: | 185c |
|---|
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | Russian |
| Published: |
М
Недра
1983
|
| Subjects: |
| Physical Description: | 185c |
|---|