Die Gesteine des Duppauer Gebirges in Nord-Böhmen / Dahkki Clements, J. Morgan 1869-, Clements, J. Morgan 1869-

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<<The>> Vermilion iron-bearing district of Minnesota : with an Atlas / Dahkki Clements, J. Morgan, 1869-

Atlas to accompany monograph XLV on the Vermilion iron-bearing district of Minnesota / Dahkki Clements, J. Morgan, 1869-

The Crystal Falls Iron-Bearing District of Michigan Dahkki Clements, J. Morgan 1869-, Smyth, Henry Lloyd, Bayley, William S. 1861-1943

<<The>> Crystal Falls ion-bearing district of Michigan : with a ch. on the Sturgeon River Tongue /

Eará dahkkit: “…Clements, J. Morgan, 1869-…”