✦ LIBER ✦
Challenge in the west: How to mine thick seams (in two parts) : Bowen, R J; Bowen, W R Coal Min Process, V16, N1, Jan 1979, P70–76 (Part 1), Feb 1979, P61–66 (Part 2)
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 110 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0148-9062
No coin nor oath required. For personal study only.