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|a The relation of oxidation to the origin of soft iron ores of Michigan /
|c Virgil I. Mann.
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| 260 |
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|a ,
|c 1953
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| 504 |
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|b 79 refs.
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| 504 |
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|b 79 refs.
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| 043 |
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|a 73-gx
|2 73
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|a Mann, Virgil I..
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|a p. 251-281
|b il.
|c 23 cm.
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|c AR-RiUNS
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| 866 |
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| 773 |
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|t ECONOMIC Geology and the bulletin of the Society of Economic Geologists
|w E1
|g Vol. 48, n. 4 (June-July 1953)
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| 942 |
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|c PP
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| 999 |
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|c 20903
|d 20903
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