The Mineral Industry of Pennsylvania in 1968
| Title | The Mineral Industry of Pennsylvania in 1968 PDF eBook |
| Author | Charles C. Yeloushan |
| Publisher | |
| Pages | 22 |
| Release | 1970 |
| Genre | Mineral industries |
| ISBN |
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The Mineral Industry of Pennsylvania in 1969
| Title | The Mineral Industry of Pennsylvania in 1969 PDF eBook |
| Author | C. Gordon Leaf |
| Publisher | |
| Pages | 20 |
| Release | 1971 |
| Genre | Mineral industries |
| ISBN |
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The Mineral Industry of Pennsylvania in 1961
| Title | The Mineral Industry of Pennsylvania in 1961 PDF eBook |
| Author | Robert D. Thomson |
| Publisher | |
| Pages | 42 |
| Release | 1962 |
| Genre | Mineral industries |
| ISBN |
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The Mineral Industry of Pennsylvania in 1957
| Title | The Mineral Industry of Pennsylvania in 1957 PDF eBook |
| Author | Robert D. Thomson |
| Publisher | |
| Pages | 39 |
| Release | 1959 |
| Genre | Mineral industries |
| ISBN |
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The Mineral Industry of Pennsylvania in 1956
| Title | The Mineral Industry of Pennsylvania in 1956 PDF eBook |
| Author | Robert D. Thomson |
| Publisher | |
| Pages | 42 |
| Release | 1958 |
| Genre | Mineral industries |
| ISBN |
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The Mineral Industry of Pennsylvania in 1953
| Title | The Mineral Industry of Pennsylvania in 1953 PDF eBook |
| Author | Alvin Kaufman |
| Publisher | |
| Pages | 26 |
| Release | 1956 |
| Genre | Mineral industries |
| ISBN |
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The Mineral Industry of Pennsylvania in 1967
| Title | The Mineral Industry of Pennsylvania in 1967 PDF eBook |
| Author | Charles C. Yeloushan |
| Publisher | |
| Pages | 37 |
| Release | 1969 |
| Genre | Coal mines and mining |
| ISBN |
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