✦ LIBER ✦
Loading of coal pillars in bord and pillar workings. Report. 79F, 18T, 120R : Oravecz, KI Coll. Res. Lab. Cham. Mines, ZA Chamber of Mines of South Africa, Res. Report No 40–73 Oct. 1973, 224P
- Book ID
- 100003028
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 127 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0148-9062
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