The economics of coal mining,
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| Main Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
London,
E. Arnold & Co.,
1928
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| Subjects: | |
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| Physical Description: | vii, 168 p diagrs. 23 cm. vii, 168 pages diagrams 23 cm |
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| Bibliography: | "Recent literature" : p. 86 "Recent literature": page 86 |