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| 1 | Title: | The iron ores of Lake Superior: containing facts of interest relating to mining, beneficiation and shipping of the ore and location of principal mines | |
| Creator: | Crowell & Murray | ||
| Publication: | The Penton press co, Cleveland,1930. | ||
| Call #: | TN403 M5C9 1930 | ||
| Extent: | 332, viii p. fold. maps, diagrs. 24cm. | ||
| Subjects: | Iron ores -- Superior, Lake | Iron mines and mining -- Superior, Lake | Cleveland imprints 1930 | ||
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