Title | Date | Type | ||
---|---|---|---|---|
1 |
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California production statistics-1949: Significant statistics | 1949 | Text |
2 |
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California production statistics-1947: Significant statistics | 1947 | Text |
3 |
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California production statistics-1946: Production by company | 1946 | Text |
4 |
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Bituminous sandstone near Vernal, Utah | 1931 | Text |