Getting out the coal : stripping-underground mining-loading machines-roof support /
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| Hlavní autor: | |
|---|---|
| Médium: | Kniha |
| Jazyk: | English |
| Vydáno: |
New York :
McGraw-Hill,
1926.
|
| Vydání: | 1st ed. |
| Edice: | Practical coal production.
|
| Témata: |
| Popis jednotky: | Includes index. A sequel to its predecessor: Preliminaries of coal mining. |
|---|---|
| Fyzický popis: | vii, 403 p. : ill. ; 21 cm. |