✦ LIBER ✦
Experience in using PK-7 combine for sinking drifts at the “Proletarian” mine of the Borovich Refractory Combine
✍ Scribed by M. Ya. Malyanchikov
- Book ID
- 112506613
- Publisher
- Springer US
- Year
- 1964
- Tongue
- English
- Weight
- 201 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1573-9139
No coin nor oath required. For personal study only.