Comprehensive ground control study of a mechanized longwall operation - 2 volume set: Final report - volume 1
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| Description | final contract report published in 1976 |
| Author/s |
author: anonymous |
| Publication date | January 1, 1976 |
| Language | English |
| Country of origin | |
| Wikipedia link | |
| Copyright status | |
| Missing/wrong data? | Edit Wikidata item |