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Investigation of the Coals of Canada, with Reference to Their Economic Qualities, Vol. 1 Of ...
by Porter, John Bonsall
ISBN: 9781390259452
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Recherches Sus les Charbons du Canada, Au Point de Vue Leurs Qualit�s �conomiques, Vol. 1 : ...
by Porter, John Bonsall
ISBN: 9781390255508
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Investigation of the Coals of Canada, Vol. 2 Of 6 : With Reference to Their Economic Qualiti...
by Porter, John Bonsall
ISBN: 9781390284744
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Investigation of the Coals of Canada, Vol. 4 Of 6 : With Reference to Their Economic Qualiti...
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ISBN: 9781390286922
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Recherches Sur les Charbons du Canada Au Point de Vue de Leurs Qualit�s �conomiques, Vol. 6 ...
by Porter, John Bonsall
ISBN: 9781390287752
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Recherches Sur les Charbons du Canada Au Point de Vue de Leurs Qualit� S �conomiques, Vol. 4...
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ISBN: 9781390311914
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Investigation of the Coals of Canada with Reference to the Economic Qualities, Vol. 3 Of 6 :...
by Porter, John Bonsall
ISBN: 9781390330205
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Investigation of the Coals of Canada with Reference to the Economic Qualities, Vol. 3 Of 6 :...
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ISBN: 9781396221170
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Recherches Sur les Charbons du Canada Au Point de Vue de Leurs Qualit� S �conomiques, Vol. 4...
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ISBN: 9781396231629
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Investigation of the Coals of Canada, Vol. 2 Of 6 : With Reference to Their Economic Qualiti...
by Porter, John Bonsall
ISBN: 9781396254192
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Recherches Sur les Charbons du Canada Au Point de Vue de Leurs Qualit�s �conomiques, Vol. 6 ...
by Porter, John Bonsall
ISBN: 9781396251634
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Investigation of the Coals of Canada, Vol. 4 Of 6 : With Reference to Their Economic Qualiti...
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ISBN: 9781396252891
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Recherches Sus les Charbons du Canada, Au Point de Vue Leurs Qualit�s �conomiques, Vol. 1 : ...
by Porter, John Bonsall
ISBN: 9781396286162
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Investigation of the Coals of Canada, with Reference to Their Economic Qualities, Vol. 1 Of ...
by Porter, John Bonsall
ISBN: 9781396283093
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Education of Mining Engineers (Classic Reprint)
by Porter, John Bonsall
ISBN: 9781528540759
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Investigation of the Coals of Canada, with Reference to Their Economic Qualities, Vol. 6 Of ...
by Porter, John Bonsall
ISBN: 9780260646279
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Education of Mining Engineers (Classic Reprint)
by Porter, John Bonsall
ISBN: 9780260880086
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Investigation of the Coals of Canada, with Reference to Their Economic Qualities, Vol. 6 Of ...
by Porter, John Bonsall
ISBN: 9780266013792
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Recherches Sur les Charbons du Canada Au Point de Vue de Leurs Qualites Economiques, Vol. 3 ...
by Porter, John Bonsall
ISBN: 9780428887896
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Recherches Sur les Charbons du Canada Au Point de Vue de Leurs Qualites Economiques, Vol. 3 ...
by Porter, John Bonsall
ISBN: 9780428888060
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Recherches Sur les Charbons du Canada Au Point de Vue de Leurs Qualit�s �conomiques, Vol. 2 ...
by Porter, John Bonsall
ISBN: 9781391236865
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